Frank Dental Carbide Finishing Burs - Carpide Polishing Bur C246 - For Air Turbine

Frank Dental Tungsten Carbide Finishing and Polishing Bur — C246

• Brand: Frank Dental
• Material type: Tungsten carbide
• Shank type: (314) Suitable for use with an air turbine (aeratör).
• Recommended speed: Use at a maximum of 300,000 rpm.
• Origin: Made in Germany

Cutting efficiency and precision

Tungsten carbide (WC-Co) burs offer high cutting efficiency thanks to their hardness and blade geometry. Vibration is minimal, which improves operator control and helps maintain patient comfort.

Wear resistance and service life

WC-Co alloy burs have superior wear resistance compared with steel and other alloys. They withstand repeated sterilization and keep their edges for a long time.

Heat control and tissue protection

Thanks to high cutting efficiency, localized heat rise is limited when used with low pressure. This reduces the risk of pulp tissue damage. Chip evacuation is optimized.

Material compatibility and multi-purpose use

Can be used across a wide range of materials such as metal crown materials, composite, and amalgam. Metal-cutting characteristics make some designs especially suited to metal milling.

Geometry and design features

Blade angle, helix angle, and flute count directly affect bur performance. Aggressive (positive rake) blades cut quickly; negative rake or radial-angle designs increase fracture resistance.

Care and use precautions

• Inspect the bur frequently for micro-cracks or edge damage.
• Apply ultrasonic washing and appropriate sterilization protocols.
• Avoid maximum pressure at high speeds; overload shortens material life.
• Choose a flute design that does not block chip flow.

Important note

Tungsten burs tend to fracture on impact, drops, or blows. Work without pressing hard and take care to avoid drops and impacts.

Speed recommendation

Use at a maximum of 300,000 rpm.