Bosch 3.5" #2 Phillips Impact Bit

Impact tough design – provides 10x life over standard bits, with an extended torsion zone, Hardened core and precision tip
Extended torsion zone – helps to absorb the torque peaks of impact drivers to avoid breakage
Precision-engineered bit tips – deliver a better fit and less cam-out
Heat-treated bit manufacturing – provides stronger bit
Hex interface – made to fit 1/4 in. Hex Impact drivers