Global Trade Identification Number. Includes SAE sizes: 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4 in, Includes metric sizes: 6, 8, 10, 12, 13, 14, 15, 16, 17, 18mm. 19.13 x 11.89 x 1.81 inches. 72 tooth ratcheting box end needs a minimal 5° to move fasteners vs 30° for standard wrenches. […]