External Torx, Internal Torx, External Hex, Hex, TX
AF, Torx, Metric, Imperial, SAE
11/32 ", 5/16 ", 9/32 ", 5.5 mm, 1-1/2 "
1/2, 1/4, 3/4, 1-1/2, 2-1/2
38.1, 25.4, 9.53, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Phosphate, Black Oxide