External Hex, Internal Hex, Internal Torx, Hex, TX
Torx, AF, Metric, Imperial, SAE
15/16 ", 5/16 ", 9/16 ", 3/16 ", 34 mm
1/2, 3/4, 1/4, 2-1/2, 1-1/2
12.5, 6.35, 19.05, 38.1, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide