Frank Dental Tungsten Carpide Bur C.21FG - for Air Turbine - 5 Pcs

Frank Dental tungsten carbide bur — turbine C21

• Material: tungsten carbide
• Shank: (314) for turbine handpieces
• Pack contents: 5 pcs
• Recommended speed: max 300,000 rpm
• Origin: Made in Germany

Cutting efficiency and precision

Tungsten carbide (WC-Co) burs offer high cutting efficiency through hardness and blade geometry. Vibration is minimal, improving operator control and patient comfort.

Wear resistance and service life

WC-Co alloy burs have superior wear resistance versus steel and other alloys. They withstand repeated sterilization and keep their edges longer.

Heat control and tissue protection

High cutting efficiency at low pressure limits isolated heat rise and reduces pulp risk. Chip clearance is optimized.

Material compatibility

Suitable across a wide range including metal crown materials, composite, and amalgam. Some designs are specialized for metal cutting.

Geometry and design

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

Care notes

• Inspect often for micro-cracks or edge damage
• Use ultrasonic washing and proper sterilization
• Avoid max pressure at high speeds; overload shortens life
• Choose a flute design that does not block chip flow

Important note

Tungsten burs tend to fracture on impact, drops, or knocks. Run without pressing hard and protect from drops and impacts.