Internal Hex, Internal Torx, External Hex, Hex, TX
AF, Metric, Imperial, Torx, SAE
7 mm, 13 mm, 14 mm, 23 mm, 11/16 "
1-1/2, 2-1/2, 1/4, 3/8, 3/4
9.53, 19.05, 25.4, 38.1, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide