External Torx, Internal Torx, External Hex, Hex, TX
Imperial, Torx, AF, Metric, SAE
7/16 ", 15/16 ", 5 mm, 36 mm, 28 mm
1, 1-1/2, 1/2, 2-1/2, 3/8
6.35, 19.05, 12.5, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide