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General Bur Applications
Materials | Doublecut | Singlecut | Alumacut | Diamond Cut | Chipbreaker |
Aluminum | ![]() |
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Brass, Bronze, Copper | ![]() |
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Fiberglass | ![]() |
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Cast Iron | ![]() |
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Plastics | ![]() |
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Steel 40-55rc | ![]() |
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Steel 55-60rc | ![]() |
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Steel, Carbon | ![]() |
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Steel Nickle, Chrome | ![]() |
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Steel, Stainless | ![]() |
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Steel Weldments | ![]() |
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Titanium | ![]() |
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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 |
Mastercut Tool Corp. (c) 2021