{"title":"US No. 564 Bur – Busch Straight Fissure Steel, Made in Germany","description":"\u003cp\u003eThe \u003cstrong\u003eUS No. 564\u003c\/strong\u003e is the American number for a straight fissure bur with a 2.5 mm head (ISO size 025): 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. 36 025\u003c\/strong\u003e. Every US No. 564 on this page is a genuine Busch instrument and ships from our US warehouse.\u003c\/p\u003e\u003ch2\u003eWhich US No. 564 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\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/steel-cylinder-flat-cutter-dental-bur-36-025-hp-pack-of-6\"\u003e564\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e36 025\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp style=\"font-size:13px;\"\u003eHP (2.35 mm shank, straight handpiece). 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. 564\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 2.5 mm the No. 564 is a wide head for bulk reduction, sectioning and laboratory cutting.\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 564 bur?\u003c\/strong\u003e Busch No. 36 025 in steel (HP).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is a No. 564 bur?\u003c\/strong\u003e The No. 564 has a 2.5 mm head diameter (ISO size 025) on a straight fissure bur head, ISO shape 107 (cylinder, flat end).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre Busch No. 564 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-562-bur\"\u003eUS No. 562\u003c\/a\u003e, \u003ca href=\"\/collections\/us-563-bur\"\u003eUS No. 563\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"steel-cylinder-flat-cutter-dental-bur-36-025-hp-pack-of-6","title":"US No. 564 Busch Steel Straight Fissure (Cylinder) Bur | Busch No. 36 025 – Crosscut – HP | Pack of 6","description":"\u003cp\u003eThe \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e from 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 in a cylinder flat (straight fissure (cylinder) CC) geometry, this bur delivers controlled, consistent material removal across a range of workpiece surfaces.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eOffered under reference \u003cstrong\u003e36 025 (US No. 564)\u003c\/strong\u003e and sold in a convenient \u003cstrong\u003epack of 6\u003c\/strong\u003e, this \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e conforms to the ISO standard classification \u003cstrong\u003e310 104 107 002 025\u003c\/strong\u003e. The cylinder flat profile provides a flat end-cutting geometry ideal for producing flat-bottomed cavities, recesses, and precise surface preparations.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel construction for reliable cutting performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Cylinder flat (Straight Fissure (Cylinder) CC) geometry for accurate, flat-bottomed cuts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Classification:\u003c\/strong\u003e 310 104 107 002 025\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e 6 burs per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type:\u003c\/strong\u003e HP (Handpiece) shank\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany to stringent quality standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\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\u003eGerman Engineering\u003c\/h2\u003e\u003cp\u003eAs with all Busch instruments, this \u003cstrong\u003esteel cylinder flat cutter dental bur\u003c\/strong\u003e is proudly made in Germany, reflecting decades of craftsmanship and precision manufacturing. Each bur is produced to consistent tolerances, ensuring repeatable results across every use.\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 shank type does this bur use?\u003c\/strong\u003e This bur features an HP (Handpiece) shank, compatible with standard HP handpiece chucks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the ISO classification for this bur?\u003c\/strong\u003e The ISO classification is 310 104 107 002 025.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many burs are included?\u003c\/strong\u003e Each order includes a pack of 6 burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is this bur manufactured?\u003c\/strong\u003e This bur is made in Germany by Busch \u0026amp; Co. GmbH.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367823741214,"sku":"011493","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/36-stahl-zt-base_fd056890-c74a-4906-a7cc-0cfb907045e9.png?v=1766501314"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/collections\/36-stahl-zt-base_fd056890-c74a-4906-a7cc-0cfb907045e9.png?v=1789481682","url":"https:\/\/deutschedt.com\/collections\/us-564-bur.oembed","provider":"Deutsche Dental Technologien","version":"1.0","type":"link"}