Dottie Ib3xc Carded 2 Pc. #3 X 3" -

Square Drive Power Bits are manufactured for use with 3-jawed drill chucks and quick-release impact chucks. These bits feature a slightly tapered square shape which holds on to the screw for 1-handed driving and deliver high torque while reducing camout. They are heat treated to prevent wear and provide maximum durability.