858 Pointed Taper Diamond Bur – Busch, Made in Germany

Which Busch 858 Do You Need?

Choose the shank and grit first, then the head size; every active 858 in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.

Busch 858 diamonds – FG, coarse grit

Busch No.	Pattern or size
6858 014	ISO size 014 (1.4 mm) · coarse grit, green ring · FG · pack of 6

Busch 858 diamonds – FG, medium grit

Busch No.	Pattern or size
858 010	ISO size 010 (1.0 mm) · medium grit · FG · pack of 6
858 014	ISO size 014 (1.4 mm) · medium grit · FG · pack of 6

Busch 858 diamonds – FG, fine and extra fine grit

Busch No.	Pattern or size
8858 014	ISO size 014 (1.4 mm) · fine grit, red ring · FG · pack of 2
858EF 014	ISO size 014 (1.4 mm) · extra fine grit, yellow ring · FG · pack of 2

Busch 858 diamonds – HP (straight handpiece)

Busch No.	Pattern or size
858 014	ISO size 014 (1.4 mm) · medium grit · HP · pack of 2
8858 014	ISO size 014 (1.4 mm) · fine grit, red ring · HP · pack of 2
858EF 014	ISO size 014 (1.4 mm) · extra fine grit, yellow ring · 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 858 you need:

• Coarse (green ring): Busch No. 6858 for rapid reduction
• Medium (standard): Busch No. 858 for everyday preparation
• Fine (red ring): Busch No. 8858 for refining margins and surfaces
• Extra Fine (yellow ring): Busch No. 858EF 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).

• 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

• Interproximal reduction: separating teeth and breaking contacts with a fine, pointed tip.
• Feather-edge margins: axial reduction ending in a knife-edge finish line.
• Line angles and grooves: refining axial line angles and placing guide grooves.

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: 852 Pointed Taper Diamond Bur, 859 Pointed Taper Diamond Bur, 860 Flame Diamond Bur, 862 Flame 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 858 come in? We carry the 858 in head sizes 010 (1.0 mm) and 014 (1.4 mm).

What do the numbers in front of 858 mean? They indicate grit: 6858 is coarse, 858 with no prefix is medium, 8858 is fine and 858EF is extra 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.