Attributes . Combination Metric: 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm, 27mm, Combination, Reversible SAE: 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", Combination, Reversible Metric: 8mm, 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm, Combination, Stubby SAE: 5/16" . Names