External Hex, Internal Hex, Internal Torx
4 mm, 9 mm, 1-1/8 ", 5/8 ", 1-1/4 "
3/4, 1/4, 1-1/2, 1/2, 3/8
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 7/16 in, 2-1/2 in, 15/16 in, 1-1/2 in
External Torx, 12-Point, 6-Point, 7-Point, 4-Point
-