External Hex, Internal Torx, TX, Hex, External Torx
Torx, Metric, AF, Imperial, SAE
15 mm, 5/16 ", 5/8 ", 11/16 ", 34 mm
1/4, 1, 1-1/2, 3/4, 2-1/2
38.1, 9.53, 6.35, 25.4, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Oxide, Black Phosphate