Internal Hex, Internal Torx, External Hex
5/16 ", 18 mm, 5/8 ", 1-3/8 ", 21 mm
2-1/2, 1/2, 3/8, 1-1/2, 3/4
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
36 mm, 8 in, 16 mm, 39 mm, 7/16 in
External Torx, 8-Point, 12-Point, 7-Point, 4-Point
-