Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, AF, Metric, Imperial, SAE
5/8 ", 11/16 ", 11 mm, 30 mm, 9 mm
3/4, 1, 1-1/2, 2-1/2, 3/8
19.05, 6.35, 25.4, 12.5, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide