Complete set of deep Bi-Hex (12pt) 3/8""D sockets in a useful range of sizes from 6mm to 22mm. Ideal for car engine maintenance and anywhere that regular sockets are too short for access. Bi-Hex head provides 12 points of potential contact making it quicker and easier to seat the socket over most types of fastener, including square-head nuts and bolts. The size is engraved on each socket for easy identification. A quality set manufactured from satin finish chrome vanadium supplied on a socket rail for convenient, easy access storage. Socket sizes: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm. Bi-Hex (12pt) x 63mm long. Supplied on a socket rail. Manufactured from satin finish chrome vanadium. 3/8""D standard set of sockets available - please see Laser Part No. 3501.