US No. 7009 Bur – Busch Finishing Round Carbide, Made in Germany

The US No. 7009 is the American number for a round finishing bur with a 2.7 mm head (ISO size 027): a round head with many fine blades that smooth rather than cut, for finishing restorations and margins. Busch & Co. manufactures it in Germany as Busch No. 41 027. Every US No. 7009 on this page is a genuine Busch instrument and ships from our US warehouse.

Which US No. 7009 Do You Need?

US No.	Busch No.	Material	Cut	Shank	Best for	Pack
7009	41 027	Carbide	—	RA	Slow-speed contra-angle	2

RA (latch, 2.35 mm shank, contra-angle). See the Busch Bur Size Chart for head and shank dimensions.

Clinical Uses of the US No. 7009

Composite and amalgam finishing: smoothing occlusal and marginal areas after contouring without gouging.
Margin refinement: blending restoration margins into tooth structure.
Laboratory finishing: the steel HP versions smooth acrylic and remove tool marks in the straight handpiece.

At 2.7 mm the No. 7009 is a large finishing head for broad surfaces and laboratory smoothing.

Speed and Technique

Finishing burs work at reduced pressure: use them with water spray in the contra-angle or high-speed handpiece and let the blade count produce the surface; heavy pressure only dulls them. 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.

Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany

FAQ

What is the Busch number for a US 7009 bur? Busch No. 41 027 in carbide (RA).

What size is a No. 7009 bur? The No. 7009 has a 2.7 mm head diameter (ISO size 027) on a round finishing bur head, multi-bladed round finishing head.

Are Busch No. 7009 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. 7006, US No. 7008