831R Pear Diamond Bur – Busch, Made in Germany

Which Busch 831R Do You Need?

Choose the grit first, then the head size; every active 831R in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.

Busch 831R diamonds – FG, coarse grit

Busch No.	Pattern or size
6831R 012	ISO size 012 (1.2 mm) · coarse grit, green ring · FG · pack of 6
6831R 014	ISO size 014 (1.4 mm) · coarse grit, green ring · FG · pack of 6
6831R 016	ISO size 016 (1.6 mm) · coarse grit, green ring · FG · pack of 6
6831R 018	ISO size 018 (1.8 mm) · coarse grit, green ring · FG · pack of 6

Busch 831R diamonds – FG, medium grit

Busch No.	Pattern or size
831R 012	ISO size 012 (1.2 mm) · medium grit · FG · pack of 6
831R 014	ISO size 014 (1.4 mm) · medium grit · FG · pack of 6
831R 016	ISO size 016 (1.6 mm) · medium grit · FG · pack of 6
831R 018	ISO size 018 (1.8 mm) · medium grit · FG · pack of 6

Busch 831R diamonds – FG, fine grit

Busch No.	Pattern or size
8831R 012	ISO size 012 (1.2 mm) · fine grit, red ring · FG · pack of 2
8831R 016	ISO size 016 (1.6 mm) · fine grit, red ring · FG · 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 831R you need:

• Coarse (green ring): Busch No. 6831R for rapid reduction
• Medium (standard): Busch No. 831R for everyday preparation
• Fine (red ring): Busch No. 8831R 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).

• 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

• Cavity preparation: Class I and Class II preparations with naturally rounded internal line angles.
• Composite preparations: conservative, rounded preparations that suit adhesive restorations.
• Occlusal outline: extending and shaping occlusal outline form in a single pass.

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: 830 Pear Diamond Bur, 831 Pear Diamond Bur, Pear Burs, and Burs for Cavity Preparation. 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 831R come in? We carry the 831R in head sizes 012 (1.2 mm), 014 (1.4 mm), 016 (1.6 mm) and 018 (1.8 mm).

What do the numbers in front of 831R mean? They indicate grit: 6831R is coarse, 831R with no prefix is medium and 8831R is fine.

Which handpiece does the 831R fit? Every 831R on this page has an FG (friction grip, 1.6 mm shank for the high-speed handpiece).

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.