Internal Hex, Internal Torx, External Hex, TX, Hex
Metric, Torx, AF, Imperial, SAE
7 mm, 9/16 ", 9 mm, 25 mm, 29 mm
1/4, 1-1/2, 3/4, 2-1/2, 1/2
25.4, 38.1, 9.53, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide