Internal Hex, Internal Torx, External Hex
5/8 ", 3/16 ", 2-1/2 ", 4 mm, 15/16 "
2-1/2, 1-1/2, 3/4, 1/4, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
9 mm, 3-9/16 in, 1-11/16 in, 8 in, 4-3/4 in
4-Point, 7-Point, 8-Point, 6-Point, 12-Point
-