Impact Screwdriver Bit Set with Storage Colorful Box Torx Screwdriver Bit Set include 1 inches (T20x10,T25x10,T30x10) This Bit owned strong magnetic to pick up and hold screws easily with no slipping or strippingTorsion zone absorbs the torque peaks of impact drivers to avoid breakageS2 Alloy Steel,It owns the features of high hardness and good toughness and resistance through strictly heat treatment, durable and suitable for any industrial usePortable and Easy to Storage slide to open & close, 360 rotationWisdy used