SOCKET 6POINT SQ3/8IN 24MM J.24H is a cylindrical key made of very strong alloy metal. This sock lock is a solution for opening and tightening difficult-to-open bolts and maintaining the durability of the bolts. This 6 point type Facom socket wrench is made of high quality chrome steel material with a 3/8 INC square drive and a 24 MM head size .