29391 Type 130-D 1/2" Reduced Shank Silver & Deming Super High-Speed M42 Cobalt 135Â degree Split Point Drill Bit 168 Teeth and a tough copper core

and a tough copper core

01 microns

Two-Piece Housing has rust-proof plated finish

500" -40°F-212°F 200 psi R516 5/16"

29391 Type 130-D 1/2" Reduced Shank Silver & Deming Super High-Speed M42 Cobalt 135Â degree Split Point Drill Bit 168 Teeth and a tough copper coreHeavy 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