Busch Diamond Taper (Cone) Round Bur | Busch No. 856EF 012 – Extra Fine Grit, Yellow Ring – FG | Pack of 2
The diamond extra fine dental bur taper (cone) round from Busch & Co. GmbH is a precision-engineered rotary instrument designed for controlled, refined dental preparations. Featuring a taper (cone) round shape and an extra fine grit, this bur is ideal for clinicians who demand accuracy and a smooth surface finish in their restorative workflow.
Product Specifications
- Shape: Taper (Cone) Round
- Grit: Extra Fine
- Ring Color: Yellow (Extra Fine identification)
- ISO Classification: 806 314 198 504 012
- Pack Size: Pack of 2
Applications
This diamond extra fine dental bur taper (cone) round is specifically suited for crown preparation procedures, where precise tissue removal and smooth margin definition are critical. The extra fine grit ensures minimal surface roughness, supporting excellent adhesion and fit for restorative materials.
The diamond extra fine dental bur taper (cone) round is well-suited for the following clinical procedures:
| Crown Preparation — Reduction of tooth structure to create the margins and clearance required for a crown. |
Instrument Dimensions
| Head Ø | 1.2 mm (ISO size 012) |
|---|---|
| Shank | FG (Friction Grip) — 1.60 mm Ø, 19 mm overall length (ISO 314) |
Per ISO 6360, the size number is the maximum head diameter in tenths of a millimeter. See our Busch Bur Size Chart for the full size conversion table, shank codes, and color ring guide.
Why Choose This Instrument
Manufactured in Germany by Busch & Co. GmbH, this diamond extra fine dental bur taper (cone) round upholds the rigorous quality standards associated with German dental engineering. Each bur is crafted to deliver consistent clinical performance, long-lasting diamond particle retention, and reliable cutting efficiency across procedures.

FAQ
What does the yellow ring indicate? The yellow ring color is the universal ISO designation for extra fine grit diamond instruments.
What is the ISO classification for this bur? The ISO classification is 806 314 198 504 012, confirming the shape, grit, and shank type of this diamond extra fine dental bur taper (cone) round.
How many burs are included? This listing includes a pack of 2 burs.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | 856EF.314.012 |
| Brasseler USA | 856EF.31.012 |
| Meisinger | 856EF-012-FG |
| NTI (Kerr Rotary) | SF856EF-012 |
| Edenta | C856.314.012 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

