M-2 high speed steel for strength with black oxide coating for heat and wear resistance in wood, metal or plastic applications; split point ensures a true start and eliminates bit walking.
High speed steel with split point that keeps the drill from skating on hard materials and eliminates the need for a center punch. All 3/16" and larger have 3 flats on the shank so that the chuck gets a better grip on the bit.
Black oxide coated for greater wear resistance; split point drills on contact and prevents walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute.
Features a split point that starts on contact with no walking or skating, eliminating the need for a center punch. Bosch black oxide bits offer durability, speed and selection to support most general purpose applications. Speed helix design for faster drilling. Easier drilling and reduced heat for extended drill bit life. For use in steel, copper, aluminum, brass, oak, maple, MDG, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials.