= Okay to Use



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
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
1” Carbide Head Brazed to 1/4 or 6mm Steel Shank	12,000-18,000