External Torx, Internal Torx, External Hex, TX, Hex
Imperial, Metric, Torx, AF, SAE
11 mm, 11/16 ", 15/16 ", 7/16 ", 3/16 "
1, 1-1/2, 2-1/2, 3/8, 3/4
25.4, 19.05, 6.35, 9.53, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide