29161 Type 130-D 1/2" Reduced Shank Silver & Deming Super High-Speed M42 Cobalt 135Â degree Split Point Drill Bit 7.14mm The black surface treatment prevents

The black surface treatment prevents chip welding and increases abrasion resistance

The connectors work in the same fashion as a pneumatic quick connector

594" -40°F-212°F 200 psi R38 3/8"

abrasion resistant Nylon material

Reducer Material/Paint: Cast Iron

29161 Type 130-D 1/2" Reduced Shank Silver & Deming Super High-Speed M42 Cobalt 135Â degree Split Point Drill Bit 7.14mm The black surface treatment preventsHeavy duty 135 degree split point with gold finish for use in drilling hard tough metals, free machining stainless steel, high temperature alloys, titanium and certain plastics. High red hot hardness of cobalt steel permits speeds 30% higher than regular high speed steel drills. Cobalt drills require rigidly held, positive feed drilling equipment. Click Here for product catalog Proudly Manufactured in the U. S. A