US No. 701L Busch Carbide Tapered Fissure (Cone) Long Bur | Busch No. 33L 012 – Crosscut – FG | Pack of 6
The carbide taper (cone) fissure dental bur from Busch & Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding restorative and preparatory procedures. Manufactured in Germany, this long shank taper (cone) flat fissure bur delivers consistent performance across a wide range of clinical applications.
Product Specifications
- Type: Carbide, Taper (Cone) Flat, Excavating and Fissure Bur
- Reference: 33L 012 (US No. 701L)
- Shank: FG (Friction Grip)
- ISO Classification: 500 314 171 007 012
- Pack Size: 6 burs per pack
Applications
This carbide taper (cone) fissure dental bur is ideally suited for cavity and fissure preparation, offering the clinician precise control over cutting depth and contour. The taper (cone) flat geometry allows for efficient tooth structure removal while maintaining clean, well-defined cavity walls.
The carbide taper (cone) fissure 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. |
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 Bur?
Busch & Co. GmbH has a long-standing reputation for producing high-quality rotary instruments. Each carbide taper (cone) fissure dental bur in this range is crafted to exacting tolerances, ensuring reliable cutting efficiency and longevity. The long shank design is particularly beneficial in posterior access situations where reach is critical.

FAQ
What shank type does this bur use? This bur features an FG (Friction Grip) shank, compatible with standard high-speed handpieces.
What is the ISO classification for this bur? The ISO classification is 500 314 171 007 012, providing a standardized reference for ordering and compatibility verification.
How many burs are included per pack? Each pack contains 6 individual carbide taper (cone) fissure dental burs, offering excellent value for busy clinical environments.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H33L.314.012 |
| Brasseler USA | H33L.31.012 |
| Meisinger | HM33L-012-FG |
| SS White | 310154 |
| NTI (Kerr Rotary) | FG701L-KC0 |
| Alpen (Coltène) | R10701L |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

