Internal Torx, External Hex, Hex, TX, External Torx
AF, Torx, Imperial, SAE, Metric
3/16 ", 5.5 mm, 7 mm, 5/8 ", 32 mm
3/4, 1/4, 1/2, 2-1/2, 3/8
38.1, 6.35, 19.05, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide