Shockwave, 7 Piece, 1", Torx Insert Bit Set, Impact Duty Driver Bits Are Engineered For Extreme Durability, Made From Proprietary Steel & Heat Treated To Control Hardness, Features An Innovatively Designed Geometric Shock Absorption Zone To Extend Life, Forged Tip Allows For A Secure Grip & Maximum Contact Eliminating Stripping Or Slipping.