Hardened and tempered hex bits with satin finish, mounted in polished chrome vanadium square drive sockets. Contents: hex 3, 4, 5, 6, 7, 8 and 10mm. Hardened and tempered hex bits with satin finish, mounted in polished chrome vanadium square drive sockets. Contents: hex 3, 4, 5, 6, 7, 8 and 10mm.