Internal Torx, External Torx, External Hex, TX, Hex
Imperial, Torx, AF, Metric, SAE
1 ", 5/8 ", 9/16 ", 3/16 ", 33 mm
38.1, 19.05, 6.35, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide