Which US No. 7303 Do You Need?
The collection currently holds one US No. 7303, linked below by its Busch number.
FG (high-speed handpiece)1 items
| Busch No. |
US No. |
Material |
Cut |
Shank |
Best for |
Pack |
| 47L 012 |
7303 |
Carbide |
— |
FG |
High-speed handpiece |
2 |
FG (friction grip, 1.6 mm shank, high-speed handpiece). See the Busch Bur Size Chart for head and shank dimensions.
Speed and Technique
Light pressure with water spray; let the multi-bladed head produce the surface. 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
-
Occlusal finishing: smoothing composite in fossae and along cusp ridges.
-
Proximal contouring: refining marginal ridges and proximal contours.
At 1.2 mm the No. 7303 is a finishing head sized for posterior restorations.
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. 7304 Bur, Pear Burs, US No. 330 Bur, Busch Finishing Burs, and Composite Finishing Burs. 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. 7304
FAQ
What is the Busch number for a US 7303 bur?
Busch No. 47L 012 in carbide (FG).
What size is a No. 7303 bur?
The No. 7303 has a 1.2 mm head diameter (ISO size 012) on a pear finishing bur head, multi-bladed pear finishing head.
Are Busch No. 7303 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.