Busch & Co. GmbH
Regular price $21.99Unit price-
Busch & Co. GmbH
Busch Diamond Taper (Cone) Rounded Edge Bur | Busch No. 846KR 016 – Medium Grit – FG | Pack of 6
Regular price $39.99Unit price -
Busch & Co. GmbH
Busch Diamond Taper (Cone) Rounded Edge Bur | Busch No. 846KR 014 – Medium Grit – FG | Pack of 6
Regular price $39.99Unit price -
Busch & Co. GmbH
Regular price $20.99Unit price -
Busch & Co. GmbH
Regular price $20.99Unit price
Which Busch 846KR Do You Need?
Choose the shank and grit first, then the head size; every active 846KR in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.
Busch 846KR diamonds – FG, medium grit
| Busch No. | Pattern or size |
|---|---|
| 846KR 014 | ISO size 014 (1.4 mm) · medium grit · FG · pack of 6 |
| 846KR 016 | ISO size 016 (1.6 mm) · medium grit · FG · pack of 6 |
Busch 846KR diamonds – FG, fine and extra fine grit
| Busch No. | Pattern or size |
|---|---|
| 8846KR 014 | ISO size 014 (1.4 mm) · fine grit, red ring · FG · pack of 2 |
| 8846KR 016 | ISO size 016 (1.6 mm) · fine grit, red ring · FG · pack of 2 |
| 846KREF 016 | ISO size 016 (1.6 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 846KR you need:
- Medium (standard): Busch No. 846KR for everyday preparation
- Fine (red ring): Busch No. 8846KR for refining margins and surfaces
- Extra Fine (yellow ring): Busch No. 846KREF 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, ideal for all-ceramic and zirconia crowns.
- Tapered axial walls: correct convergence for retention in one pass.
- Ceramic-friendly preparation: rounded line angles that reduce stress concentration 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
Related Busch collections: 845KR Rounded-Edge Taper Diamond Bur, 847KR Rounded-Edge Taper Diamond Bur, 848KR Rounded-Edge Taper Diamond Bur, 846 Flat-End Taper Diamond Bur, 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 846KR come in? We carry the 846KR in head sizes 014 (1.4 mm) and 016 (1.6 mm).
What do the numbers in front of 846KR mean? They indicate grit: 846KR with no prefix is medium, 8846KR is fine and 846KREF is extra fine.
Which handpiece does the 846KR fit? Every 846KR 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.
