About this item Heavy Duty Impact Socket – Made of Cr-Mo steel forged with heat treatment for hardness and withstand higher torque Strong and Sturdy – The star socket with phosphide black finish, for wear resistant, impact resistant and anti rust, which is have a longer service Faster Fastener Grip : 6-point socket opening and inner deep corners design making fastener gripping as smooth as possible. Longer Life Labeling: each socket with size labels are laser marked on the it and permanently imprinted on the sockets for longer life. Versatility – Adapted for impact wrenches with a 1/2 inch drive, used for automobile maintenance, electromechanical maintenance, household maintenance and other scenarios






