855 Round-End Taper Diamond Bur – Busch, Made in Germany

Which Busch 855 Do You Need?

Choose the shank and grit first, then the head size; every active 855 in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.

Busch 855 diamonds – FG, coarse grit

Busch No.	Pattern or size
6855 012	ISO size 012 (1.2 mm) · coarse grit, green ring · FG · pack of 6
6855 025	ISO size 025 (2.5 mm) · coarse grit, green ring · FG · pack of 6

Busch 855 diamonds – FG, medium grit

Busch No.	Pattern or size
855 012	ISO size 012 (1.2 mm) · medium grit · FG · pack of 6
855 014	ISO size 014 (1.4 mm) · medium grit · FG · pack of 6
855 025	ISO size 025 (2.5 mm) · medium grit · FG · pack of 6

Busch 855 diamonds – FG, fine grit

Busch No.	Pattern or size
8855 012	ISO size 012 (1.2 mm) · fine grit, red ring · FG · pack of 2

Busch 855 diamonds – HP (straight handpiece)

Busch No.	Pattern or size
855 025	ISO size 025 (2.5 mm) · medium grit · HP · pack of 2

Choosing a Grit

Busch marks grit with a colored ring and a prefix on the figure number, so you can order the exact 855 you need:

• Coarse (green ring): Busch No. 6855 for rapid reduction
• Medium (standard): Busch No. 855 for everyday preparation
• Fine (red ring): Busch No. 8855 for refining margins and surfaces

Sizes and Shanks

The three-digit size code is the head diameter in tenths of a millimeter (for example, 012 = 1.2 mm).

• HP (2.35 mm shank for the straight handpiece)
• FG (friction grip, 1.6 mm shank for the high-speed handpiece)

See the Busch Bur Size Chart for full dimensions and the Dental Bur Speed Chart for maximum recommended speeds.

Made in Germany by Busch & Co.

Busch & Co. has manufactured rotary instruments in Engelskirchen, Germany since 1905. Each diamond is produced under ISO 13485-certified quality management on a concentric shank for smooth, chatter-free cutting, and is covered by our Busch warranty.

Clinical Use

• Chamfer margins: the classic chamfer finish line for full-coverage crowns.
• Tapered axial walls: correct convergence for retention with a rounded gingival floor.
• Crown and bridge preparation: axial and occlusal reduction with a single bur.

Care and Reconditioning

Busch rotary instruments are reusable: clean, disinfect and sterilize them between patients according to the manufacturer’s instructions, and replace a bur once it dulls or shows damage. Our Dental Bur Reprocessing & Sterilization Guide walks through the workflow for carbide, diamond and steel instruments.

Compare With

Related Busch collections: 850 Round-End Taper Diamond Bur, 856 Round-End Taper Diamond Bur, 878 Torpedo Diamond Bur, Round End Taper Diamonds, and Crown and Bridge Dental Burs. For numbering, sizes and speeds, see the US Bur Number Finder, the Color Coding & ISO Guide and the Dental Bur Speed Chart.

Reference resources: Bur Comparison Chart · Size Chart · Bur Glossary · All Busch Diamond Burs

FAQ

What sizes does the Busch 855 come in? We carry the 855 in head sizes 012 (1.2 mm), 014 (1.4 mm) and 025 (2.5 mm).

What do the numbers in front of 855 mean? They indicate grit: 6855 is coarse, 855 with no prefix is medium and 8855 is fine.

Should I order FG or HP? FG fits the high-speed handpiece used for most clinical preparation. HP fits the straight handpiece used for laboratory work and chairside adjustments.

Can Busch diamonds be reused? Yes. Clean, disinfect and sterilize between patients following the Bur Sterilization Guide, and replace the bur when cutting efficiency drops.