External Torx, Internal Torx, External Hex, Hex, TX
Torx, AF, Imperial, SAE, Metric
13/16 ", 9/16 ", 3/16 ", 5/16 ", 25 mm
1, 3/4, 1-1/2, 2-1/2, 1/4
19.05, 25.4, 9.53, 6.35, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide