{"title":"US No. 558 Bur – Busch Straight Fissure Carbide \u0026 Steel, Made in Germany","description":"\u003cp\u003eThe \u003cstrong\u003eUS No. 558\u003c\/strong\u003e is the American number for a straight fissure bur with a 1.2 mm head (ISO size 012): a parallel-sided cylinder with a flat end, so it cuts straight walls and a flat floor in one motion. Busch \u0026amp; Co. manufactures it in Germany as \u003cstrong\u003eBusch No. 31 012\u003c\/strong\u003e and \u003cstrong\u003eBusch No. 36 012\u003c\/strong\u003e (plus 2 further variants below). Every US No. 558 on this page is a genuine Busch instrument and ships from our US warehouse.\u003c\/p\u003e\u003ch2\u003eWhich US No. 558 Do You Need?\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eUS No.\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eBusch No.\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eMaterial\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eCut\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eShank\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eBest for\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/carbide-cylinder-fissure-dental-bur-31-012-fg-pack-of-6\"\u003e558\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e31 012\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCarbide\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrosscut\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFG\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eHigh-speed handpiece\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/carbide-cylinder-flat-dental-bur-busch-31-012-pack-of-6\"\u003e558\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e31 012\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCarbide\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrosscut\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eHP\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eStraight handpiece: laboratory and denture work\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/steel-cylinder-flat-cutter-dental-bur-36-012-pack-of-6\"\u003e558\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e36 012\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSteel\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrosscut\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eHP\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eEconomical laboratory cutting of acrylics and plaster\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/carbide-cylinder-fissure-dental-bur-31l-012-fg-pack-of-6\"\u003e558L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e31L 012\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCarbide\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrosscut\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFG\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eLonger head for deeper preparations\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/carbide-cylinder-flat-cutter-dental-bur-31l-012-hp-pack-of-6\"\u003e558L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e31L 012\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCarbide\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrosscut\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eHP\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eLonger head for deeper preparations\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/carbide-cylinder-round-bone-cutter-dental-bur-31rl-012-fgxl-pack-of-2\"\u003e558X\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e31RL 012\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCarbide\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrosscut\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFG-XL (25 mm)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSurgical: sectioning and extended reach; rounded end, rounded end\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp style=\"font-size:13px;\"\u003eFG (friction grip, 1.6 mm shank, high-speed handpiece). HP (2.35 mm shank, straight handpiece). FG-XL (friction grip, 25 mm surgical length). See the \u003ca href=\"\/pages\/busch-bur-size-chart\"\u003eBusch Bur Size Chart\u003c\/a\u003e for head and shank dimensions.\u003c\/p\u003e\u003ch2\u003eClinical Uses of the US No. 558\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCavity preparation:\u003c\/strong\u003e opening through enamel and establishing the straight walls and flat floor of Class I and Class II preparations, including proximal boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestoration removal:\u003c\/strong\u003e cutting out old amalgam and composite; crosscut versions clear the debris instead of packing with it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSectioning:\u003c\/strong\u003e dividing crowns and multi-rooted teeth, where the surgical-length versions add reach and visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory and denture work:\u003c\/strong\u003e the HP carbide and steel versions trim acrylic, adjust denture bases and reduce plaster models in the straight handpiece.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAt 1.2 mm the No. 558 is the standard operative size.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003e558L\u003c\/strong\u003e (Busch 31L 012) carries a longer cutting head for deeper boxes and taller walls. The \u003cstrong\u003e558X\u003c\/strong\u003e is the surgical version: the same cutting head on a 25 mm FG-XL shank for reach when sectioning teeth and roots, with a rounded end.\u003c\/p\u003e\u003cp\u003eThe No. 558 is crosscut; its plain-cut twin in the same shape and size is the \u003ca href=\"\/collections\/us-58-bur\"\u003eUS No. 58 (Busch 21 012)\u003c\/a\u003e. Crosscut blades cut faster and clear debris; when you need a smooth wall or a finish line, follow with the plain-cut twin or a finishing bur.\u003c\/p\u003e\u003ch2\u003eSpeed and Technique\u003c\/h2\u003e\u003cp\u003eRun the FG versions in the high-speed handpiece with continuous water spray and light, intermittent pressure; let the blades do the work. HP versions run at laboratory speed in the straight handpiece. Maximum recommended speeds for every Busch shape are in our \u003ca href=\"\/pages\/dental-bur-speed-chart\"\u003eDental Bur Speed Chart\u003c\/a\u003e, and reprocessing steps in the \u003ca href=\"\/pages\/dental-bur-sterilization-guide\"\u003eBur Sterilization Guide\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eMade in Germany by Busch \u0026amp; Co.\u003c\/h2\u003e\u003cp\u003eBusch \u0026amp; Co. has manufactured rotary instruments in Engelskirchen, Germany since 1905. Every instrument on this page is a genuine Busch product, precision-ground on a concentric shank under ISO-certified quality management and guaranteed to arrive free of manufacturing defects under our \u003ca href=\"\/pages\/warranty\"\u003eBusch arrival guarantee\u003c\/a\u003e.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Busch number for a US 558 bur?\u003c\/strong\u003e Busch No. 31 012 in carbide (FG\/HP); Busch No. 36 012 in steel (HP). The 558L is Busch 31L 012; the 558X is Busch 31RL 012.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is a No. 558 bur?\u003c\/strong\u003e The No. 558 has a 1.2 mm head diameter (ISO size 012) on a straight fissure bur head, ISO shape 107 (cylinder, flat end).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between a No. 558 and a No. 58?\u003c\/strong\u003e Same shape and size; one is plain-cut and the other crosscut. The No. 558 is crosscut — crosscut cuts faster and clears debris, plain-cut leaves a smoother surface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat do the letters after No. 558 mean?\u003c\/strong\u003e The 558L (Busch 31L 012) carries a longer cutting head for deeper boxes and taller walls. The 558X is the surgical version: the same cutting head on a 25 mm FG-XL shank for reach when sectioning teeth and roots, with a rounded end.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCarbide or steel?\u003c\/strong\u003e Tungsten carbide for enamel, dentin, composite and amalgam in the clinic; the steel No. 558 is the economical choice for acrylics, plaster and other soft materials in the laboratory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre Busch No. 558 burs reusable?\u003c\/strong\u003e Yes. Carbide and steel burs are cleaned, disinfected and sterilized between patients and replaced when they dull; the \u003ca href=\"\/pages\/dental-bur-sterilization-guide\"\u003eBur Sterilization Guide\u003c\/a\u003e gives the validated steps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelated resources:\u003c\/strong\u003e \u003ca href=\"\/pages\/us-bur-numbers\"\u003eUS Bur Number Finder\u003c\/a\u003e · \u003ca href=\"\/pages\/bur-comparison-chart\"\u003eBur Comparison Chart\u003c\/a\u003e · \u003ca href=\"\/pages\/dental-bur-speed-chart\"\u003eSpeed Chart\u003c\/a\u003e · \u003ca href=\"\/pages\/dental-bur-glossary\"\u003eBur Glossary\u003c\/a\u003e · Nearby sizes: \u003ca href=\"\/collections\/us-556-bur\"\u003eUS No. 556\u003c\/a\u003e, \u003ca href=\"\/collections\/us-557-bur\"\u003eUS No. 557\u003c\/a\u003e, \u003ca href=\"\/collections\/us-559-bur\"\u003eUS No. 559\u003c\/a\u003e, \u003ca href=\"\/collections\/us-560-bur\"\u003eUS No. 560\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"steel-cylinder-flat-cutter-dental-bur-36-012-pack-of-6","title":"US No. 558 Busch Steel Straight Fissure (Cylinder) Bur | Busch No. 36 012 – Crosscut – HP | Pack of 6","description":"\u003cp\u003eThe \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e by Busch \u0026amp; Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding applications in Plastics Technology and Model Making. Built from high-quality steel, this cylinder flat cutter delivers consistent, controlled material removal across a wide range of working conditions.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Cylinder Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Cutter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Classification (ISO):\u003c\/strong\u003e 310 104 107 002 012\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e 6 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e 36 012 (US No. 558)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e is suited for a variety of precision tasks. Its geometry and steel construction make it a reliable choice wherever clean, flat-bottomed cuts are required.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e is well-suited for the following dental laboratory applications:\u003c\/p\u003e\u003ctable role=\"presentation\" style=\"border:0;border-collapse:collapse;width:100%;max-width:640px;margin:0 0 1em 0;background:transparent;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Plastics_Tech.png?v=1767131648\" alt=\"Plastics Technology\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003ePlastics Technology\u003c\/strong\u003e — Shaping, trimming and finishing of acrylic dentures and appliances.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Model_Making.png?v=1767131647\" alt=\"Model Making\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eModel Making\u003c\/strong\u003e — Trimming and detailing of plaster and stone models.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy Choose This Bur?\u003c\/h2\u003e\u003cp\u003eAs a genuine \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e from Busch \u0026amp; Co. GmbH, this instrument reflects decades of German engineering tradition. Each bur in the pack is manufactured to consistent tolerances, ensuring predictable performance across every use. The cylinder flat geometry is particularly effective for creating flat floors and well-defined walls in a variety of materials.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the ISO classification for this bur?\u003c\/strong\u003e The ISO classification is 310 104 107 002 012.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many burs are included in the pack?\u003c\/strong\u003e This listing includes a pack of 6 burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat applications is this steel cylinder flat cutter dental bur suitable for?\u003c\/strong\u003e It is recommended for Plastics Technology and Model Making applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this product made in Germany?\u003c\/strong\u003e Yes, this bur is manufactured in Germany by Busch \u0026amp; Co. GmbH.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367823544606,"sku":"011469","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/36-stahl-zt-base_68c2936e-0355-4d05-91f0-5d3d78b302f3.png?v=1766501283"},{"product_id":"carbide-cylinder-flat-dental-bur-busch-31-012-pack-of-6","title":"US No. 558 Busch Carbide Straight Fissure (Cylinder) Bur | Busch No. 31 012 – Crosscut – HP | Pack of 6","description":"\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder flat dental bur\u003c\/strong\u003e from Busch \u0026amp; Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding dental and technical applications. Manufactured to exacting German standards, this cutter delivers consistent, controlled material removal across a wide range of substrates.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis instrument is classified as a Carbide Cutter, Cylinder Flat, conforming to the following standard classification: \u003cstrong\u003eISO: 500 104 107 007 012\u003c\/strong\u003e. It is supplied in a convenient \u003cstrong\u003epack of 6\u003c\/strong\u003e (product reference: 31 012 \/ US No. 558), ensuring you always have a ready supply of fresh cutting instruments on hand.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder flat dental bur\u003c\/strong\u003e is well-suited for the following dental laboratory applications:\u003c\/p\u003e\u003ctable role=\"presentation\" style=\"border:0;border-collapse:collapse;width:100%;max-width:640px;margin:0 0 1em 0;background:transparent;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Crown_Bridge_Tech.png?v=1767131647\" alt=\"Crown and Bridge Technology\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eCrown and Bridge Technology\u003c\/strong\u003e — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Plastics_Tech.png?v=1767131648\" alt=\"Plastics Technology\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003ePlastics Technology\u003c\/strong\u003e — Shaping, trimming and finishing of acrylic dentures and appliances.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Model_Making.png?v=1767131647\" alt=\"Model Making\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eModel Making\u003c\/strong\u003e — Trimming and detailing of plaster and stone models.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Model_Cast_Tech.png?v=1767131648\" alt=\"Model Casting Technique\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eModel Casting Technique\u003c\/strong\u003e — Finishing and adjustment of cast metal frameworks.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy Choose This Bur?\u003c\/h2\u003e\u003cp\u003eAs a genuine \u003cstrong\u003ecarbide cylinder flat dental bur\u003c\/strong\u003e, this instrument offers superior hardness and edge retention compared to standard steel cutters. The cylinder flat geometry provides flat-bottomed cuts and well-defined margins, making it an ideal choice for technicians who demand accuracy and repeatability in every procedure.\u003c\/p\u003e\u003cp\u003eProduced in Germany, each bur in this pack benefits from rigorous quality control and consistent manufacturing tolerances, ensuring reliable performance across all six pieces.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the ISO classification for this bur?\u003c\/strong\u003e The ISO classification is 500 104 107 007 012.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many burs are included in one pack?\u003c\/strong\u003e Each pack contains 6 carbide cylinder flat dental burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat industries is this bur suitable for?\u003c\/strong\u003e It is suitable for model making, plastics technology, crown and bridge technology, and model casting technique.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this product made in Germany?\u003c\/strong\u003e Yes, this instrument is manufactured in Germany by Busch \u0026amp; Co. GmbH.\u003c\/p\u003e\u003ch2\u003e\u003ca href=\"\/pages\/bur-comparison-chart#b-31-012-hp\" style=\"color:inherit;text-decoration:none;\"\u003eCompare With\u003c\/a\u003e\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;margin:0 0 1em 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eManufacturer\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eKomet (Gebr. Brasseler)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31.104.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eBrasseler USA\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31.11.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eMeisinger\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eHM31-012-HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eSS White\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003e310067\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eNTI (Kerr Rotary)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eHP558-KC5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eEdenta\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eC31.104.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer literature:\u003c\/strong\u003e Busch catalogs and product brochures for this line are available in our \u003ca href=\"\/pages\/busch-burs-catalogs\"\u003eBusch Burs Catalog Library\u003c\/a\u003e.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367837733150,"sku":"020885","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/31-zt-base_98915dfe-c3e1-4046-b674-699d43244abf.png?v=1766500881"},{"product_id":"carbide-cylinder-flat-cutter-dental-bur-31l-012-hp-pack-of-6","title":"US No. 558L Busch Carbide Straight Fissure (Cylinder) Long Bur | Busch No. 31L 012 – Crosscut – HP | Pack of 6","description":"\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder flat cutter dental bur\u003c\/strong\u003e from Busch \u0026amp; Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding professional applications. Manufactured in Germany, this cutter delivers consistent, controlled material removal across a wide range of substrates.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis instrument is classified as a Carbide Cutter, Cylinder Flat type, conforming to the following standard classification: \u003cstrong\u003eISO: 500 104 110 007 012\u003c\/strong\u003e. The HP (handpiece) shank configuration and long carbide cylinder flat geometry make this \u003cstrong\u003ecarbide cylinder flat cutter dental bur\u003c\/strong\u003e a versatile choice for technicians who require reliable performance in precision work environments. Each pack contains \u003cstrong\u003e6 burs\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder flat cutter dental bur\u003c\/strong\u003e is well-suited for the following dental laboratory applications:\u003c\/p\u003e\u003ctable role=\"presentation\" style=\"border:0;border-collapse:collapse;width:100%;max-width:640px;margin:0 0 1em 0;background:transparent;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Crown_Bridge_Tech.png?v=1767131647\" alt=\"Crown and Bridge Technology\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eCrown and Bridge Technology\u003c\/strong\u003e — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Plastics_Tech.png?v=1767131648\" alt=\"Plastics Technology\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003ePlastics Technology\u003c\/strong\u003e — Shaping, trimming and finishing of acrylic dentures and appliances.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Model_Making.png?v=1767131647\" alt=\"Model Making\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eModel Making\u003c\/strong\u003e — Trimming and detailing of plaster and stone models.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Model_Cast_Tech.png?v=1767131648\" alt=\"Model Casting Technique\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eModel Casting Technique\u003c\/strong\u003e — Finishing and adjustment of cast metal frameworks.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy Choose This Bur?\u003c\/h2\u003e\u003cp\u003eAs a genuine \u003cstrong\u003ecarbide cylinder flat cutter dental bur\u003c\/strong\u003e made in Germany, this instrument reflects Busch's long-standing commitment to quality, precision, and engineering excellence. The carbide construction ensures lasting sharpness and durability under repeated use, making it a dependable choice for laboratory and clinical professionals alike.\u003c\/p\u003e\u003cp\u003eWhether you are working in dental technology, model making, or plastics fabrication, this \u003cstrong\u003ecarbide cylinder flat cutter dental bur\u003c\/strong\u003e offers the performance and consistency required for exacting work. Supplied in a convenient pack of 6 for uninterrupted workflow.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat handpieces are compatible with this instrument?\u003c\/strong\u003e It has an HP (2.35 mm straight) shank, which fits standard laboratory and slow-speed straight handpieces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many are included per pack?\u003c\/strong\u003e Each pack contains 6 burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is this instrument made?\u003c\/strong\u003e It is manufactured by Busch \u0026amp; Co. in Engelskirchen, Germany, an ISO 13485-certified specialist in rotary precision instruments since 1905.\u003c\/p\u003e\u003ch2\u003e\u003ca href=\"\/pages\/bur-comparison-chart#b-31l-012-hp\" style=\"color:inherit;text-decoration:none;\"\u003eCompare With\u003c\/a\u003e\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;margin:0 0 1em 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eManufacturer\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eKomet (Gebr. Brasseler)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31L.104.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eBrasseler USA\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31L.11.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eMeisinger\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eHM31L-012-HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eSS White\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003e310084\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eEdenta\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eC31L.104.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer literature:\u003c\/strong\u003e Busch catalogs and product brochures for this line are available in our \u003ca href=\"\/pages\/busch-burs-catalogs\"\u003eBusch Burs Catalog Library\u003c\/a\u003e.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367839371550,"sku":"020981","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/31l-zt-base_453f65d1-b6da-4834-902f-8252d7d1c282.png?v=1766500977"},{"product_id":"carbide-cylinder-fissure-dental-bur-31-012-fg-pack-of-6","title":"US No. 558 Busch Carbide Straight Fissure (Cylinder) Bur | Busch No. 31 012 – Crosscut – FG | Pack of 6","description":"\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e 31 012 (US No. 558) from Busch \u0026amp; Co. GmbH is a precision-engineered instrument designed for reliable cavity preparation and fissure work in clinical dentistry. Manufactured in Germany to exacting standards, this bur delivers consistent cutting performance across demanding restorative procedures.\u003c\/p\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Carbide, Cylinder Flat, Excavating and Fissure Bur\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Classification:\u003c\/strong\u003e 500 314 107 007 012\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUS No.:\u003c\/strong\u003e 558\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank:\u003c\/strong\u003e FG (Friction Grip)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 6 burs per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign and Performance\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e features a flat-end cylinder geometry that enables precise, controlled cutting with minimal lateral deviation. The carbide construction ensures long-lasting sharpness and thermal stability, making it well-suited for high-speed handpiece use. The flat cutting tip is ideal for establishing flat pulpal floors and clean vertical walls during cavity preparation.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e is well-suited for the following clinical procedures:\u003c\/p\u003e\u003ctable role=\"presentation\" style=\"border:0;border-collapse:collapse;width:100%;max-width:640px;margin:0 0 1em 0;background:transparent;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Cavity_Fissure_Prep.png?v=1767131647\" alt=\"Cavity\/Fissure Preparation\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eCavity\/Fissure Preparation\u003c\/strong\u003e — Opening, extending and shaping cavities and fissures with controlled removal of enamel and dentin.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eGerman Engineering Quality\u003c\/h2\u003e\u003cp\u003eEach \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e in this pack is manufactured in Germany by Busch \u0026amp; Co. GmbH, a trusted name in dental rotary instruments. German-made quality ensures dimensional accuracy, consistent flute geometry, and reliable clinical outcomes batch after batch.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat handpieces are compatible with this instrument?\u003c\/strong\u003e It has an FG (friction grip) shank, which fits standard high-speed turbine handpieces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many are included per pack?\u003c\/strong\u003e Each pack contains 6 burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is this instrument made?\u003c\/strong\u003e It is manufactured by Busch \u0026amp; Co. in Engelskirchen, Germany, an ISO 13485-certified specialist in rotary precision instruments since 1905.\u003c\/p\u003e\u003ch2\u003e\u003ca href=\"\/pages\/bur-comparison-chart#b-31-012-fg\" style=\"color:inherit;text-decoration:none;\"\u003eCompare With\u003c\/a\u003e\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;margin:0 0 1em 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eManufacturer\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eKomet (Gebr. Brasseler)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31.314.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eBrasseler USA\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31.31.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eMeisinger\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eHM31-012-FG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eSS White\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003e310130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eNTI (Kerr Rotary)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eFG558-KC0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eAlpen (Coltène)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eR100558\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eKarl Schumacher\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eBCO0558F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer literature:\u003c\/strong\u003e Busch catalogs and product brochures for this line are available in our \u003ca href=\"\/pages\/busch-burs-catalogs\"\u003eBusch Burs Catalog Library\u003c\/a\u003e.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367862800670,"sku":"020957","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/31-base_ba8d5ee9-c123-446a-a36c-270a37f4704c.png?v=1766500875"},{"product_id":"carbide-cylinder-fissure-dental-bur-31l-012-fg-pack-of-6","title":"US No. 558L Busch Carbide Straight Fissure (Cylinder) Long Bur | Busch No. 31L 012 – Crosscut – FG | Pack of 6","description":"\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e 31L 012 (US No. 558L) from Busch \u0026amp; Co. GmbH is a precision-engineered rotary instrument designed for demanding restorative and operative dentistry procedures. Manufactured in Germany to exacting standards, this bur delivers consistent, reliable performance in clinical environments.\u003c\/p\u003e\u003ch2\u003eProduct Classification\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e is classified under the ISO standard \u003cstrong\u003e500 314 110 007 012\u003c\/strong\u003e, identifying it as a Cylinder Flat, Excavating and Fissure Bur in the carbide category. The FG (Friction Grip) shank ensures secure, vibration-free seating in high-speed handpieces.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Tungsten carbide for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eShape: Cylinder flat — optimized for precise fissure preparation and excavation\u003c\/li\u003e\n\u003cli\u003eShank type: FG (Friction Grip) for high-speed handpiece compatibility\u003c\/li\u003e\n\u003cli\u003eISO Classification: 500 314 110 007 012\u003c\/li\u003e\n\u003cli\u003ePack size: 6 burs per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e is well-suited for the following clinical procedures:\u003c\/p\u003e\u003ctable role=\"presentation\" style=\"border:0;border-collapse:collapse;width:100%;max-width:640px;margin:0 0 1em 0;background:transparent;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Cavity_Fissure_Prep.png?v=1767131647\" alt=\"Cavity\/Fissure Preparation\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eCavity\/Fissure Preparation\u003c\/strong\u003e — Opening, extending and shaping cavities and fissures with controlled removal of enamel and dentin.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy Choose This Bur?\u003c\/h2\u003e\u003cp\u003eBusch \u0026amp; Co. GmbH has a long-standing reputation for manufacturing high-quality rotary dental instruments. Every \u003cstrong\u003ecarbide cylinder fissure dental bur\u003c\/strong\u003e in this range undergoes rigorous quality control to ensure dimensional accuracy, cutting efficiency, and longevity. The large carbide designation (LG) reflects an extended cutting surface suited for broader cavity preparations.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat handpiece is this bur compatible with?\u003c\/strong\u003e This bur features an FG (Friction Grip) shank, making it compatible with standard high-speed dental handpieces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many burs are included?\u003c\/strong\u003e Each pack contains 6 individual burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the ISO classification of this bur?\u003c\/strong\u003e The ISO classification is 500 314 110 007 012, corresponding to a carbide cylinder flat fissure bur.\u003c\/p\u003e\u003ch2\u003e\u003ca href=\"\/pages\/bur-comparison-chart#b-31l-012-fg\" style=\"color:inherit;text-decoration:none;\"\u003eCompare With\u003c\/a\u003e\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;margin:0 0 1em 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eManufacturer\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 12px;text-align:left;background:#f6f6f6;\"\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eKomet (Gebr. Brasseler)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31L.314.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eBrasseler USA\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eH31L.31.012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eMeisinger\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eHM31L-012-FG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eSS White\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003e310151\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eNTI (Kerr Rotary)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 12px;\"\u003eFG558L-KC0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer literature:\u003c\/strong\u003e Busch catalogs and product brochures for this line are available in our \u003ca href=\"\/pages\/busch-burs-catalogs\"\u003eBusch Burs Catalog Library\u003c\/a\u003e.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367863030046,"sku":"020993","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/31l-base_da9eab71-e9b0-42b1-9907-83602f161c4c.png?v=1766500972"},{"product_id":"carbide-cylinder-round-bone-cutter-dental-bur-31rl-012-fgxl-pack-of-2","title":"US No. 558X Busch Carbide Straight Fissure (Cylinder) Round Bur | Busch No. 31RL 012 – Crosscut – FG-XL | Pack of 2","description":"\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder round bone cutter dental bur\u003c\/strong\u003e from Busch \u0026amp; Co. GmbH is a precision-engineered rotary instrument designed to meet the demanding requirements of oral surgery procedures. Manufactured in Germany to exacting standards, this bur delivers consistent, controlled cutting performance across a range of clinical applications.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Carbide, Cylinder Round, Bone Cutter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Classification:\u003c\/strong\u003e 500 316 140 007 012\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUS No.:\u003c\/strong\u003e 558X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank:\u003c\/strong\u003e FGXL (Friction Grip Extra Long)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e 2 burs per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003ecarbide cylinder round bone cutter dental bur\u003c\/strong\u003e is specifically indicated for oral surgery, where precise osseous reduction and bone shaping are essential. The cylindrical round geometry provides a consistent cutting profile, allowing clinicians to work with accuracy and confidence during surgical procedures.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003ecarbide cylinder round bone cutter dental bur\u003c\/strong\u003e is well-suited for the following clinical procedures:\u003c\/p\u003e\u003ctable role=\"presentation\" style=\"border:0;border-collapse:collapse;width:100%;max-width:640px;margin:0 0 1em 0;background:transparent;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"border:0;padding:6px 14px 6px 4px;text-align:center;vertical-align:middle;width:52px;background:transparent;line-height:0;font-size:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/Oral_Surgery.png?v=1767130155\" alt=\"Oral Surgery\" width=\"34\" height=\"34\" loading=\"lazy\" style=\"display:block;margin:0 auto;width:34px;height:34px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:6px 0;text-align:left;vertical-align:middle;background:transparent;\"\u003e\n\u003cstrong\u003eOral Surgery\u003c\/strong\u003e — Cutting and shaping of bone in oral and maxillofacial surgical procedures.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy Choose This Bur?\u003c\/h2\u003e\u003cp\u003eAs a \u003cstrong\u003ecarbide cylinder round bone cutter dental bur\u003c\/strong\u003e, this instrument offers the hardness and wear resistance associated with carbide construction, making it well-suited for cutting through cortical and cancellous bone. The FGXL shank provides extended reach in deeper surgical sites, while the round cylinder head geometry ensures smooth, predictable cutting action with minimal vibration.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat procedures is this bur intended for?\u003c\/strong\u003e This carbide cylinder round bone cutter dental bur is designed for oral surgery applications, primarily bone cutting and osseous reshaping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many burs are included?\u003c\/strong\u003e Each pack contains 2 burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shank type does this bur use?\u003c\/strong\u003e It features an FGXL (Friction Grip Extra Long) shank, compatible with standard high-speed handpieces accepting FG-type burs.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367869813022,"sku":"021113","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/31rl-base_39fb5036-315c-430a-b36e-5dfd6125dbc0.png?v=1766501040"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/collections\/31-base_ba8d5ee9-c123-446a-a36c-270a37f4704c.png?v=1789481676","url":"https:\/\/deutschedt.com\/collections\/us-558-bur.oembed","provider":"Deutsche Dental Technologien","version":"1.0","type":"link"}