The URREA 3/8 » drive deep sockets, are made of chrome vanadium steel with nickel – chrome plated. The mouth of the sockets has a Super Drive® design that prolongs their life and does not damage the screws and nuts and bolts. Meets National and «ternational standards: American and European.. Used for automotive and «dustrial ma»tenance and repair work for applications where a conventional socket is limited due to space constra»ts. There is an Urrea socket always available and ready for any challenge.