Internal Hex, Internal Torx, TX, Hex, External Torx
Torx, AF, Imperial, Metric, SAE
11/16 ", 9 mm, 26 mm, 28 mm, 10 mm
3/4, 1, 2-1/2, 1-1/2, 1/2
38.1, 19.05, 6.35, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide