Busch Diamond Occlusal Contouring Bur | Busch No. 8899 031 – Fine Grit, Red Ring – FG | Pack of 2
The diamond fine grit dental bur from Busch & Co. is a precision-engineered rotary instrument designed to meet the exacting demands of modern restorative and prosthetic dentistry. Featuring a fine grit diamond coating indicated by the red ring classification, this bur delivers smooth, controlled cutting action with minimal surface roughness on the preparation margins.
Product Specifications
- Type: Diamond, Fine Grit
- Ring Colour: Red (Fine)
- ISO Classification: 806 314 033 514 031
- Reference: 8899 031 FG
- Pack Contents: 2 burs
Applications
As a reliable diamond fine grit dental bur, this instrument is optimised for crown preparation procedures where precise marginal definition and smooth surface finish are essential. The fine diamond abrasive allows the clinician to refine preparations efficiently while minimising trauma to surrounding tooth structure.
The diamond fine grit dental bur 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 | 3.1 mm (ISO size 031) |
|---|---|
| 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.
German Engineering Quality
Each diamond fine grit dental bur in this range is manufactured in Germany to stringent quality standards. Busch & Co. has a long-established reputation for producing dental rotary instruments that offer consistent performance, dimensional accuracy, and durability across clinical applications.

FAQ
What does the red ring on this bur indicate? The red ring denotes a fine grit diamond coating, which is suited to finishing and refining tooth preparations.
How many burs are included in this pack? This listing contains a pack of 2 diamond fine grit dental burs.
What is the ISO classification for this bur? The ISO classification is 806 314 033 514 031.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | 8899.314.031 |
| Brasseler USA | 8899.31.031 |
| Meisinger | 8899-031-FG |
| NTI (Kerr Rotary) | F899-031 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

