40-Piece Bosch Driven Alloy Steel Hex Shank Bit Set

Driven design – provides 50X life over standard bits, with a torsion zone built to last, hardened surface and precision tip
Precision-milled bit tips – deliver a better fit and less cam-out
Heat-treated bit manufacturing – provides more durable bits
Impact-rated interface – made to fit 1/4 In. hex impact drivers
Laser-etched markings – lasts for the life of bit, and they're easier to read
Magnetic tips – provide a magnetized force to hold the screws on the bit
Torsion zone – built to last, with a new tapered design, it absorbs the torque peaks of impact drivers to avoid breakage