Internal Torx, External Hex, External Torx, Hex, TX
AF, Metric, Torx, Imperial, SAE
9/32 ", 9/16 ", 5/8 ", 3/16 ", 11/16 "
1, 2-1/2, 1-1/2, 1/2, 3/8
9.53, 12.5, 6.35, 25.4, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Phosphatized, Oxidised, Black Phosphate, Black Oxide