Internal Hex, Internal Torx, External Hex
7/32 ", 5/8 ", 2-1/2 ", 4 mm, 7/8 "
1, 3/4, 1-1/2, 3/8, 2-1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
4-1/16 in, 58 mm, 3/4 in, 9/16 in, 39 mm, 1-1/4 in
4-Point, 6-Point, 7-Point, 8-Point, 12-Point
-