Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, Imperial, AF, Metric, SAE
15/16 ", 9/16 ", 7/16 ", 11/16 ", 35 mm
1-1/2, 2-1/2, 1/2, 3/8, 1
9.53, 6.35, 19.05, 12.5, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide