Internal Torx, External Torx, External Hex, TX, Hex
AF, Metric, Torx, Imperial, SAE
5/8 ", 9 mm, 7/16 ", 34 mm, 30 mm
1-1/2, 1, 2-1/2, 1/4, 3/8
12.5, 19.05, 6.35, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide