External Torx, Internal Hex, External Hex, Hex, TX
Imperial, Metric, AF, Torx, SAE
15/16 ", 7/8 ", 3/16 ", 7/16 ", 25 mm
6.35, 19.05, 9.53, 38.1, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide