External Torx, Internal Torx, External Hex, TX, Hex
Imperial, AF, Torx, SAE, Metric
7/16 ", 5/8 ", 3/4 ", 11/16 ", 32 mm
12.5, 6.35, 19.05, 38.1, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide