Internal Hex, Internal Torx, External Hex
4 mm, 7/16 ", 1-1/2 ", 9 mm, 5.5 mm
1, 1/2, 2-1/2, 3/8, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
37 mm, 11 mm, 34 mm, 1-5/16 in, 8 in
12-Point, 4-Point, External Torx, 8-Point, 7-Point
-