An impact socket supports the force being applied by an impact gun or ratchet wrench. Constructed from molybdenum creating a distinctive black finish, impact sockets need to withstand the vibration of applied force, from the wheel of a vehicle. The wrench sits within the socket, which then attaches onto the wheel, and allows you to replace them safely and smoothly. You can order 3/8" impact sockets online with Free UK delivery or via Free Click & Collect at all our stores nationwide. Plus, if you have any questions, our expert team can answer any questions you have.