Input Drive Size: 1/4" Drive Shape: Square Length: 150mm (rail) Type: 12 Point Deep Socket Set on Rail (SAE AS954) Includes: AS2305A Aerospace Standard SAE AS954 12pt Sockets: 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16 inches Rail (150mm long)