Internal Torx, External Hex, TX, Hex, 6-Point
Imperial, Torx, Metric, AF, SAE
15 mm, 6 mm, 26 mm, 28 mm, 11/16 "
38.1, 25.4, 9.53, 19.05, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide