External Torx, Internal Torx, Internal Hex, Hex, TX
Torx, AF, Imperial, SAE, Metric
3/16 ", 5/16 ", 5/8 ", 11/16 ", 9 mm
1/4, 1-1/2, 2-1/2, 3/8, 3/4
38.1, 9.53, 19.05, 25.4, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide