Which US No. 14 Do You Need?
Every No. 14 here has the HP shank, so choose by material; every active product in the collection is linked once below by its Busch number.
HP (straight handpiece)2 items
| Busch No. |
US No. |
Material |
Cut |
Shank |
Best for |
Pack |
| 3 012 |
14 |
Carbide |
Plain-cut |
HP |
Straight handpiece: laboratory and denture work |
6 |
| 3 012 |
14 |
Steel |
Plain-cut |
HP |
Economical laboratory cutting of acrylics and plaster |
6 |
HP (2.35 mm shank, straight handpiece). See the Busch Bur Size Chart for head and shank dimensions.
Speed and Technique
Steel wheels are laboratory instruments for the straight handpiece: keep the speed moderate, present the edge squarely, and do not use them on enamel or metal. Maximum recommended speeds for every Busch shape are in our Dental Bur Speed Chart, and reprocessing steps in the Bur Sterilization Guide.
Made in Germany by Busch & Co.
Busch & 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 13485-certified quality management and covered by our Busch warranty.
Clinical Use
-
Grooves and slots: cutting retention channels, guide grooves and slots in acrylic, wax and plaster.
-
Relief and trimming: reducing flat areas and thinning material in denture bases and models.
-
Separation: parting and sectioning in laboratory work where a narrow kerf is wanted.
At 1.2 mm the No. 14 is a wheel sized for laboratory cutting and grooving.
Care and Reconditioning
Busch carbide and steel burs are reusable: clean, disinfect and sterilize them between patients following the manufacturer instructions and replace them once they dull. Our Dental Bur Reprocessing & Sterilization Guide gives the steps for Busch rotary instruments.
Compare With
Related Busch collections: US No. 13 Bur, US No. 15 Bur, Wheel & Disc Instruments, Dental Lab Carbide Burs, Dental Lab Steel Burs, and HP Burs for the Straight Handpiece. For bur numbering and dimensions, see the Busch Bur Size Chart and the Dental Bur Glossary.
Related resources: US Bur Number Finder · Bur Comparison Chart · Speed Chart · Bur Glossary · Nearby sizes: US No. 12, US No. 13, US No. 15, US No. 16
FAQ
What is the Busch number for a US 14 bur?
Busch No. 3 012 in carbide (HP); Busch No. 3 012 in steel (HP).
What size is a No. 14 bur?
The No. 14 has a 1.2 mm head diameter (ISO size 012) on a wheel bur head, ISO wheel shape.
Carbide or steel?
Tungsten carbide for enamel, dentin, composite and amalgam in the clinic; the steel No. 14 is the economical choice for acrylics, plaster and other soft materials in the laboratory.
Are Busch No. 14 burs reusable?
Yes. Carbide and steel burs are cleaned, disinfected and sterilized between patients and replaced when they dull; the Bur Sterilization Guide gives the validated steps.