Internal Torx, Internal Hex, External Hex, Hex, TX
AF, Metric, Torx, Imperial, SAE
5 mm, 9/16 ", 5/16 ", 11/16 ", 32 mm
3/4, 1/4, 1-1/2, 1/2, 2-1/2
9.53, 19.05, 6.35, 25.4, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide