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General Bur Applications

Materials Doublecut Singlecut Alumacut Diamond Cut Chipbreaker
Aluminum
Brass, Bronze, Copper
Fiberglass
Cast Iron
Plastics
Steel 40-55rc
Steel 55-60rc
Steel, Carbon
Steel Nickle, Chrome
Steel, Stainless
Steel Weldments
Titanium
Zinc

The following chart is a general and approximate recommendation. Variations to achieve desired results may be necessary. Long shank burs should be used at reduced speeds.

General Bur Speed Recommendations

Bur Diameter RPM
1/8 or 3mm Solid Carbide 45,000-50,000
3/16 Solid Carbide 35,000-40,000
3/16 Carbide Head Brazed to 1/8 or 3mm Steel Shank 30,000-35,000
1/4 or 6mm Solid Carbide 30,000-35,000
1/4 Carbide Head Brazed to 1/8 or 3mm Steel Shank 25,000-30,000
5/16 Carbide Head Brazed to 1/4 or 6mm Steel Shank 25,000-30,000
3/8 Carbide Head Brazed to 1/4 or 6mm Steel Shank 25,000-30,000
7/16 Carbide Head Brazed to 1/4 or 6mm Steel Shank 20,000-25,000
1/2 Carbide Head Brazed to 1/4 or 6mm Steel Shank 20,000-25,000
5/8 Carbide Head Brazed to 1/4 or 6mm Steel Shank 15,000-20,000
3/4 Carbide Head Brazed to 1/4 or 6mm Steel Shank 15,000-20,000
1in Carbide Head Brazed to 1/4 or 6mm Steel Shank 12,000-18,000