External Hex, Internal Hex, Internal Torx
9 mm, 5/8 ", 5.5 mm, 23 mm, 1-3/8 "
1-1/2, 1/2, 3/4, 2-1/2, 3/8
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
2-11/16 in, 8 in, 39 mm, 15/16 in, 5/16 in
7-Point, 6-Point, 12-Point, 4-Point, 8-Point
-