Internal Torx, Internal Hex, External Hex, Hex, TX
AF, Metric, Torx, Imperial, SAE
15 mm, 9/16 ", 25 mm, 33 mm, 1-1/2 "
3/4, 1-1/2, 2-1/2, 1/2, 1
25.4, 6.35, 9.53, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide