Bosch GDS 18V-450 HC Professional 06019K4002

General purpose high speed steel wire gauge straight shank jobber length drill bits is constructed of M-2 high speed steel for the best combination of strength, heat resistance, and wear resistance.

DeWalt 2 x 2 in. Phillips power bits 5 pieces to drive screws powerfully into numerous materials. The bits are made from heat-treated, shock-resistant steel with a hardened core to help them last a long time.

The Milwaukee Red Helix Cobalt 5/16 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.