NOS These new sockets are designed to allow easy maintenance & rebuilding of NOS solenoids using a 3/8" ratchet or torque wrench. Each socket is made from billet 2024 aluminum w/ stainless steel pins that fit into the retaining nut on the solenoid. Choose from the small or large body socket, based in the solenoid you want to service. Black anodized finish. Sold individually.