Busch Diamond Taper (Cone) Flat Bur | Busch No. 8854 040 – Fine Grit, Red Ring – HP | Pack of 1
The fine grit diamond taper (cone) flat dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding restorative and prosthetic procedures. Manufactured in Germany to exacting standards, this bur delivers consistent cutting performance, superior surface quality, and reliable clinical results.
Product Specifications
- Shape: Taper (Cone) Flat
- Grit: Fine
- ISO Classification: 806 104 172 514 040
- Reference: 8854 040 HP
- Pack Size: 1
Key Features
As a fine grit diamond taper (cone) flat dental bur, this instrument is optimised for finishing and contouring tasks that require a high degree of control. The fine diamond grit ensures minimal surface roughness, reducing the need for extensive polishing steps and improving overall workflow efficiency. The taper (cone) flat geometry offers excellent access in both anterior and posterior regions.
Instrument Dimensions
| Head Ø | 4.0 mm (ISO size 040) |
|---|---|
| Shank | HP (Straight Handpiece) — 2.35 mm Ø, 44.5 mm overall length (ISO 104) |
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.
Applications
This fine grit diamond taper (cone) flat dental bur is particularly well suited for Crown and Bridge Technology, where precision shaping, margin refinement, and smooth surface preparation are critical to achieving accurate fit and optimal aesthetics.
The fine grit diamond taper (cone) flat dental bur is well-suited for the following dental laboratory applications:
| Crown and Bridge Technology — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory. |

FAQ
What procedures is this bur best suited for? This fine grit diamond taper (cone) flat dental bur is ideal for crown and bridge preparation, margin finishing, and general contouring in restorative dentistry.
What is the ISO classification for this instrument? The ISO classification is 806 104 172 514 040, conforming to international dental instrument standards.
Is this product made in Germany? Yes, Busch & Co. GmbH manufactures this instrument in Germany, ensuring consistent quality and precision engineering.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | 8854.104.040 |
| Brasseler USA | 8854.11.040 |
| Meisinger | 8854-040-HP |
| NTI (Kerr Rotary) | F854-040 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

