Internal Torx, Internal Hex, External Hex, Hex, TX
Torx, Imperial, Metric, AF, SAE
7/8 ", 7 mm, 13 mm, 9 mm, 28 mm
3/4, 1-1/2, 2-1/2, 3/8, 1
12.5, 19.05, 6.35, 38.1, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide