US No. 33 1/2 Busch Carbide Inverted Cone Bur | Busch No. 2 006 – FG | Pack of 6
The inverted cone carbide dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding restorative and preparatory procedures. Built to exacting standards in Germany, this bur delivers consistent cutting performance and reliability in clinical environments.
Product Overview
This inverted cone carbide dental bur is classified as an Excavating and Fissure Bur, combining an inverted cone geometry with a carbide construction for efficient material removal and precise cavity shaping. The ISO Standard Classification for this instrument is: ISO: 500 314 010 001 006. Supplied as a convenient pack of 6, it ensures continuity of care and cost-effective stocking for busy dental practices.
Key Features
- Carbide construction for enhanced durability and cutting efficiency
- Inverted cone geometry for accurate undercut and fissure preparation
- Compatible with friction grip (FG) handpieces
- ISO classification: 500 314 010 001 006
- Pack of 6 for clinical convenience
- Manufactured in Germany to high quality standards
Instrument Dimensions
| Head Ø | 0.6 mm (ISO size 006) |
|---|---|
| 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.
Applications
The inverted cone carbide dental bur is well-suited for the following clinical procedures:
| Cavity/Fissure Preparation — Opening, extending and shaping cavities and fissures with controlled removal of enamel and dentin. |
Its geometry makes it particularly effective for creating retentive undercuts and accessing fissures during cavity preparation, giving clinicians precise control throughout the procedure.

FAQ
What handpiece is this bur compatible with? This bur is designed for use with friction grip (FG) handpieces, as indicated by the FG designation in the product classification.
How many burs are included in a pack? Each pack contains 6 individual inverted cone carbide dental burs, making it suitable for multi-use clinical settings.
Where is this bur manufactured? This instrument is made in Germany by Busch & Co. GmbH.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H2.314.006 |
| Brasseler USA | H2.31.006 |
| Meisinger | HM2-006-FG |
| SS White | 310105 |
| Alpen (Coltène) | R1331/2 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

