External Torx, Internal Torx, External Hex, TX, Hex
Imperial, AF, Torx, Metric, SAE
9/16 ", 3/16 ", 5/16 ", 11/16 ", 34 mm
19.05, 25.4, 6.35, 12.5, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide