US No. 242 Bur – Busch Finishing Flame Carbide, Made in Germany

The US No. 242 is the American number for a flame finishing bur with a 1 mm head (ISO size 010): a slender flame-shaped finishing head that reaches interproximal and gingival margins. Busch & Co. manufactures it in Germany as Busch No. 48 010. Every US No. 242 on this page is a genuine Busch instrument and ships from our US warehouse.

Which US No. 242 Do You Need?

US No.	Busch No.	Material	Cut	Shank	Best for	Pack
242	48 010	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.

Clinical Uses of the US No. 242

Anterior composite finishing: contouring and smoothing facial and lingual surfaces.
Interproximal and gingival margins: the pointed flame reaches embrasures and finish lines other shapes cannot.
Crown margin finishing: refining chamfer and knife-edge finish lines before impressions.

At 1 mm the No. 242 is a fine flame for detailed margin work.

Speed and Technique

Light pressure with water spray in the high-speed handpiece; work along the margin rather than across it. 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 242 bur? Busch No. 48 010 in carbide (FG).

What size is a No. 242 bur? The No. 242 has a 1 mm head diameter (ISO size 010) on a flame finishing bur head, multi-bladed flame finishing head.

Are Busch No. 242 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