Internal Hex, Internal Torx, External Hex
5/16 ", 9/32 ", 2-1/2 ", 4 mm, 5/8 "
1/2, 2-1/2, 3/8, 3/4, 1/4
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
1-15/16 in, 3/4 in, 9/16 in, 1-11/16 in, 3-9/16 in, 8 in
6-Point, 7-Point, 12-Point, 8-Point, 4-Point
-