Input Drive Size: 1/4" Drive Shape: Square Length: 150mm (rail) Type: 12 Point SAE Socket Set on Rail Output Sizes: 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2 in. Includes 9 SAE Sockets and Rail Opening: 12pt Note: Image shows RS2400A/9 6-point Socket Set