Bosch GSB 18V-21 Professional 06019H1109

The Milwaukee Red Helix Cobalt 7/16 in. Drill Bit are engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a Variable Helix t more→hat includes an aggressive 35 degree Helix Angle which ends at 15 degree. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes in hard metals, PVC and wood. The tapered drill bits feature a new enhanced tapered web that strengthens the bit's core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. black oxide brill bits.

Carbide tipped for long life in tough applications. Centric tip ensures quick starts in concrete. Wear mark alerts user when tip wears beyond ANSI specification. Bit runs cooler thanks to improved flute design.

Diablo's SPEEDemo Red Granite Carbide Tipped Hammer Drill Bit range provides one of the fastest and longest lasting drilling solutions on the market for concrete, masonry and stone. Optimized with a u more→nique brazing and hardening process, the carbide tip extends life and productivity, allowing users to drill fast, accurate holes. The multi-ground Grip Point tip design allows for aggressive starts that produce clean, fast holes. This range is Impact Strong for increased shank stability and durability in cordless and corded impact and drill drivers.