Internal Torx, Internal Hex, External Hex, TX, Hex
Imperial, AF, Torx, Metric, SAE
1 ", 5/8 ", 7/8 ", 11/16 ", 26 mm
1/4, 3/4, 1, 1-1/2, 2-1/2
9.53, 38.1, 25.4, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide