Busch Diamond Bullet Bur | Busch No. 8390 018 – Fine Grit, Red Ring – FG | Pack of 2
The diamond fine grit dental bur 8390 018 FG from Busch & Co. GmbH is a precision-engineered rotary instrument designed for controlled, refined preparation in restorative and operative dentistry. Featuring a fine grit diamond coating identified by the red ring color coding, this bur delivers smooth, accurate cutting with reduced surface roughness — ideal for finishing and detail work.
Product Specifications
- Grit: Fine (Red Ring)
- Shank Type: FG (Friction Grip)
- ISO Classification: 806 314 274 514 018
- Pack Quantity: Pack of 2
- Manufacturer: Busch & Co. GmbH
Applications
This diamond fine grit dental bur is specifically suited for the following clinical procedure:
The fine diamond abrasive allows clinicians to achieve a high degree of surface control, minimizing trauma to surrounding tooth structure while ensuring accurate preparation margins.
The diamond fine grit dental bur is well-suited for the following clinical procedures:
| Filling Treatment — Contouring, finishing and polishing of amalgam and composite restorations. |
Instrument Dimensions
| Head Ø | 1.8 mm (ISO size 018) |
|---|---|
| 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 Diamond Bur?
Manufactured in Germany, this diamond fine grit dental bur reflects the exacting quality standards associated with Busch & Co. GmbH. Each bur in the pack is produced to consistent dimensional tolerances, ensuring reliable performance across procedures. The red ring designation provides instant chairside identification, reducing the risk of grit selection errors during treatment.

FAQ
What does the red ring indicate on this bur? The red ring is the ISO standard color code for fine grit diamond instruments, allowing quick and accurate identification at chairside.
Is this bur compatible with standard high-speed handpieces? Yes, the FG (Friction Grip) shank is designed for use with standard friction grip high-speed dental handpieces.
How many burs are included? This listing contains a pack of 2 diamond fine grit dental bur units, ISO reference 806 314 274 514 018.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | 8390.314.018 |
| Brasseler USA | 8390.31.018 |
| Meisinger | 8390-018-FG |
| NTI (Kerr Rotary) | F390-018 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

