Wright Tool 8746 1-7/16-Inch with 1-Inch Drive 12 Point Standard Impact Sockets Size 1-Inch nominal size 1 7/16-Inch Shape III length 2 11/16-Inch Diameter socket 2-1/4-Inch diameter drive 2 3/32-Inch Broach depth 7/8-Inch ret ring 6581A 12 point impact sockets should only be used on 12 point fasteners