Bosch HCBG03B25T Bluegranite Turbo™ Carbide Hammer Drill Bits, 3/16 x 4 in, 25 pc

Tested up to 5x longer life than standard bits faster drilling with four-grind bit head and milled u-flutesredesigned with hex shanks for high-torque impact drivers.

Features

• Upgraded build delivers 5x life and 2x speed over standard masonry bits
• Hex shanks and impact rated allows use in impact drivers and hammer drill/drivers for added versatility
• Bosch-made carbide delivers outstanding durability under heavy loads
• Four-grind head delivers two more cutting angles for longer life and faster speed
• Multi-grind carbide centering tip offers accurate starts in brick, masonry and more