8 Std Length SAE: 5/16, 3/8, 7/16, ½, 9/16, 5/8, 11/16, 3/4"8 Deep Length SAE: 5/16, 3/8, 7/16, ½, 9/16, 5/8, 11/16, 3/4"12 Std Length Metric: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm12 Deep Length Metric: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm1 pc 3/8” Dr. Universal Joint, 1 pc 3” Extension