835KR Rounded-Edge Cylinder Diamond Bur

Which Busch 835KR Do You Need?

Choose the grit first, then the head size; every active 835KR in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.

Busch 835KR diamonds – FG, medium grit

Busch No.	Pattern or size
835KR 008	ISO size 008 (0.8 mm) · medium grit · FG · pack of 6
835KR 010	ISO size 010 (1.0 mm) · medium grit · FG · pack of 6
835KR 012	ISO size 012 (1.2 mm) · medium grit · FG · pack of 6
835KR 014	ISO size 014 (1.4 mm) · medium grit · FG · pack of 6

Busch 835KR diamonds – FG, fine and extra fine grit

Busch No.	Pattern or size
8835KR 010	ISO size 010 (1.0 mm) · fine grit, red ring · FG · pack of 2
8835KR 012	ISO size 012 (1.2 mm) · fine grit, red ring · FG · pack of 2
835KREF 012	ISO size 012 (1.2 mm) · extra fine grit, yellow 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 835KR you need:

Medium (standard): Busch No. 835KR for everyday preparation
Fine (red ring): Busch No. 8835KR for refining margins and surfaces
Extra Fine (yellow ring): Busch No. 835KREF for final finishing and polishing preparation

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

Rounded shoulder: a shoulder finish line with a rounded internal angle, the preferred margin for all-ceramic and zirconia crowns.
Axial reduction: parallel axial walls in a single pass.
Ceramic onlays and inlays: flat floors with rounded line angles that lower stress in the restoration.

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

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

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

FAQ

What sizes does the Busch 835KR come in? We carry the 835KR in head sizes 008 (0.8 mm), 010 (1.0 mm), 012 (1.2 mm) and 014 (1.4 mm).

What do the numbers in front of 835KR mean? They indicate grit: 835KR with no prefix is medium, 8835KR is fine and 835KREF is extra fine.

Which handpiece does the 835KR fit? Every 835KR 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.