External Torx, External Hex, TX, Hex, 6-Point
Imperial, Metric, Torx, AF, SAE
15/16 ", 7/16 ", 5.5 mm, 9/16 ", 25 mm
2-1/2, 1-1/2, 3/8, 1/2, 3/4
38.1, 19.05, 9.53, 25.4, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide