External Hex, Internal Torx, TX, Hex, External Torx
Torx, Imperial, Metric, AF, SAE
11/16 ", 25 mm, 36 mm, 1-1/2 ", 9 mm
1/2, 1-1/2, 1, 2-1/2, 3/4
25.4, 38.1, 6.35, 9.53, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide