Internal Hex, Internal Torx, External Hex
3/16 ", 2-1/2 ", 18 mm, 15/16 ", 1-3/8 "
3/4, 1/4, 3/8, 1/2, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
5 mm, 8 in, 58 mm, 39 mm, 1-3/8 in
External Torx, 8-Point, 6-Point, 7-Point, 4-Point
-