Torx female socket set: 14 E-type Torx sockets with 1/4 " 3/8 " and 1/2 " star sockets. Product designed for use in impact screwdrivers and wrenches. E-Torx, metric and inch sizes. The special shape of the socket allows a nut or screw to be loosened even if the head of the nut is worn to a certain extent. Size: 1/4 " (6.25mm): E4, E5, E6, E7 and E8; 3/8 " (9.5mm): E10, E11, E12 and E14; 1/2 " (12.7mm): E18, E20, E22 and E24. Each mouthpiece has its size imprinted on the mouthpiece itself, making it easy to identify after removing a handle from the case. Material: These star sockets are made from heat-treated chrome vanadium steel for strength and durability, which reduces wear and ensures longevity. Torque Speed: Hardened and tempered, high strength chrome vanadium steel bushings provide superior torque for greater turning power with mirror chrome finish for corrosion resistance, professional tool for commercial or occasional use . Organized Storage: All parts are well packed and