Internal Hex, External Hex, Internal Torx, Hex, TX
Imperial, AF, Torx, Metric, SAE
9 mm, 11/16 ", 7/8 ", 1/2 ", 1-1/2 "
1/4, 1-1/2, 3/8, 2-1/2, 3/4
9.53, 6.35, 19.05, 38.1, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate