Bosch GSB 18V-45 Professional 06019K3301

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.

FLEXTORQ bits are engineered for durability. This latest generation from DEWALT redefines fitment and performance with overhauled tip geometries. The redesigned tip geometries for use with T25 size fa more→steners deliver 4X superior fit. Every FLEXTORQ bit features a FLEXTORQ Zone designed to absorb impact for longer life. Save time and find the right bit with new highly-visible laser-etched size. Each FLEXTORQ bit is IMPACT READY with a 1/4 inch hex shank for use in impact drivers and drills.

DeWalt DWAMF1280 80 Piece Standard Sets with toughcase System includes 17 black oxide drill bits up to 3/8 in. in size and a variety of industrial screwdriving/fastening bits including the most common more→fitments. It comes with a professional case that keeps things organized and provides maximum durability for the contents.