US No. 555 Busch Carbide Straight Fissure (Cylinder) Bur | Busch No. 31 008 – Crosscut – FG | Pack of 6

The carbide cylinder fissure dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed to meet the demanding standards of modern restorative dentistry. Manufactured in Germany, this bur delivers consistent cutting performance and exceptional durability across a wide range of clinical procedures.

Product Overview

This instrument is classified as a Carbide, Cylinder Flat, Excavating and Fissure Bur, conforming to the ISO standard classification ISO: 500 314 107 007 008 (US No. 555). The cylindrical flat-end geometry makes it ideally suited for precise cavity preparation and fissure work, allowing clinicians to achieve well-defined cavity walls and clean floor preparations with minimal effort.

Each pack contains 6 burs, ensuring consistent availability in busy clinical environments and offering excellent value for high-volume practices.

Key Features

• Carbide construction for long-lasting sharpness and cutting efficiency
• Cylinder flat head geometry for controlled, predictable preparation
• Compatible with friction grip (FG) handpieces
• ISO classification: 500 314 107 007 008
• Made in Germany to exacting manufacturing standards
• Supplied in a convenient pack of 6

Instrument Dimensions

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 carbide cylinder 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.

Whether used for initial cavity access or refining fissure preparations, this carbide cylinder fissure dental bur provides the control and precision required for predictable clinical outcomes.

FAQ

What handpiece is this bur compatible with? This bur is designed for use with friction grip (FG) handpieces, which are standard in most dental operatories.

What is the ISO classification for this bur? The ISO classification is 500 314 107 007 008, corresponding to US No. 555.

How many burs are included per pack? Each pack contains 6 burs, making it suitable for both individual practitioners and high-volume clinical settings.

Compare With

Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.