Northern Industrial Combination Wrench Set - 32-Pc., SAE & Metric SAE sizes: 1/4in., 5/16in., 11/32in., 3/8in., 7/16in., 1/2in., 9/16in., 5/8in., 11/16in., 3/4in. SAE stubby sizes: 5/16in., 3/8in., 7/16in., 1/2in., 9/16in., 5/8in. Metric sizes: 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 13mm, 15mm, 17mm, 18mm Metric stubby sizes: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm Stores in 4 detachable portable racks that fit into tray