Internal Hex, Internal Torx, TX, Hex, External Torx
Torx, Imperial, AF, Metric, SAE
9/32 ", 5/16 ", 5/8 ", 9/16 ", 25 mm
1/4, 1, 1-1/2, 2-1/2, 3/8
38.1, 6.35, 25.4, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide