Internal Hex, Internal Torx, External Hex
3/16 ", 36 mm, 2-1/2 ", 6 mm, 7/16 "
1, 2-1/2, 1-1/2, 3/8, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-3/16 in, 5 mm, 8 in, 7/16 in, 1-3/4 in
4-Point, External Torx, 8-Point, 7-Point, 12-Point
-