External Torx, Internal Torx, External Hex, Hex, TX
Torx, AF, Metric, Imperial, SAE
7/32 ", 13/16 ", 9/16 ", 5.5 mm, 15 mm
3/4, 1, 2-1/2, 1-1/2, 3/8
19.05, 6.35, 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