Internal Hex, Internal Torx, External Hex, Hex, TX
Imperial, Torx, Metric, AF, SAE
5 mm, 3/16 ", 14 mm, 19 mm, 1-1/2 "
1/2, 3/8, 2-1/2, 1-1/2, 3/4
25.4, 12.5, 9.53, 38.1, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide