US No. 7303 Bur – Busch Finishing Pear Carbide, Made in Germany

The US No. 7303 is the American number for a pear finishing bur with a 1.2 mm head (ISO size 012): a long pear-shaped finishing head for occlusal and proximal surfaces. Busch & Co. manufactures it in Germany as Busch No. 47L 012. Every US No. 7303 on this page is a genuine Busch instrument and ships from our US warehouse.

Which US No. 7303 Do You Need?

FG (friction grip, 1.6 mm shank, high-speed handpiece). See the Busch Bur Size Chart for head and shank dimensions.

Clinical Uses of the US No. 7303

• 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.

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-certified quality management and guaranteed to arrive free of manufacturing defects under our Busch arrival guarantee.

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.

Related resources: US Bur Number Finder · Bur Comparison Chart · Speed Chart · Bur Glossary · Nearby sizes: US No. 7304