• Manufactured from high quality Chrome Molybdenum Steel (Cr-Mo) • For use with 1/2 Sq. Drive Air & Power Impact Wrenches on domestic and commercial cars and light trucks to tighten wheel nuts to manufacturers specifications • Fits normal and thin wall specifications • Helps to eliminate overtorqued lug nuts and/or broken studs • Prevents distortion, misalignment and damage to rotors, drums and wheels • Highly recommended for use on all ABS vehicles • Shaft flexes with each blow of the impact wrench when specified torque is reached • Please refer to the Car Users Manual for individual wheel torque settings • Also available in a 10 Piece Set (K2120)