Bosch 5 pc. BlueGranite™ Turbo Carbide Hammer Drill Bits Set Size:5 Pc Made of heavy duty black

Made of heavy duty black woven high tensile material

The Black Ridgeback® Hunter is a Blackie Collins design

25 inch diameter by 4

Tempered steel for strength

Bosch 5 pc. BlueGranite™ Turbo Carbide Hammer Drill Bits Set Size:5 Pc Made of heavy duty blackTested up to 5x longer life than standard bits Faster drilling with four grind bit head and milled U flutes Redesigned with hex shanks for high torque impact drivers Upgraded build delivers 5x life and 2x speed over standard masonry bits Hex shanks and impact rated Bosch made carbide Four grind head Multi grind carbide centering tip Robust bit head Milled U flutes with deep cut spirals