Kobalt 20-Piece Standard (SAE) and Metric Combination Ratchet Wrench Set. This 20 piece ratcheting wrench set includes the following metric and SAE sizes: 6, 8, 10, 12, 13, 14, 15, 16, 17, 18 mm and 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4-inch. 12-point box end allows work on 6-point, 12-point, square, […]