TEKTON 3/8 Inch Drive 6-Point Impact Socket Set with Case, 15-Piece (1/4-1 in.) | SID91300Includes 15 pieces. 3 8 Inch Impact Socket: 1 4, 9 32, 5 16, 11 32, 3 8, 7 16, 1 2, 9 16, 5 8, 11 16 , 3 4, 13 16, 7 8, 15 16, 1 inch. Storage box Sizes are marked with both a high visibility laser mark and a permanent mark that does not fade 6 point openings provide an exact fit for hex fasteners Radiated corners prevent closure from rounding by applying force to the flat sides of a fastener, rather than its corners Meets a minimum of 1. 3 times the