845 Flat-End Taper Diamond Bur | Busch, Made in Germany

Which Busch 845 Do You Need?

Choose the shank first, then the head size; every active 845 in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.

Busch 845 diamonds – FG (friction grip)

Busch No.	Pattern or size
845 009	ISO size 009 (0.9 mm) · medium grit · FG · pack of 6
845 010	ISO size 010 (1.0 mm) · medium grit · FG · pack of 6
845 012	ISO size 012 (1.2 mm) · medium grit · FG · pack of 6
845 014	ISO size 014 (1.4 mm) · medium grit · FG · pack of 6
845 016	ISO size 016 (1.6 mm) · medium grit · FG · pack of 6

Busch 845 diamonds – HP (straight handpiece)

Busch No.	Pattern or size
845 010	ISO size 010 (1.0 mm) · medium grit · HP · pack of 2
845 012	ISO size 012 (1.2 mm) · medium grit · HP · pack of 2
845 016	ISO size 016 (1.6 mm) · medium grit · HP · pack of 2

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

Shoulder margins: butt-joint shoulder finish lines on crown preparations.
Tapered axial walls: building in the correct convergence for crown retention in one pass.
Occlusal reduction: flat, even reduction of occlusal and incisal surfaces.

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: 847 Flat-End Taper Diamond Bur, 846 Flat-End Taper Diamond Bur, 848 Flat-End Taper Diamond Bur, 845KR Rounded-Edge Taper Diamond Bur and Crown and Bridge Dental Burs. For margin design, numbering and speeds, see the Crown Preparation Margin Bur Guide, the US Bur Number Finder and the Dental Bur Speed Chart.

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 845 come in? We carry the 845 in head sizes 009 (0.9 mm), 010 (1.0 mm), 012 (1.2 mm), 014 (1.4 mm) and 016 (1.6 mm).

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.