External Torx, Internal Torx, External Hex, TX, Hex
Imperial, AF, Torx, Metric, SAE
5/8 ", 5.5 mm, 26 mm, 11 mm, 29 mm
19.05, 25.4, 9.53, 6.35, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide