Internal Hex, Internal Torx, External Hex
4 mm, 5/16 ", 1-5/16 ", 9 mm, 7/8 "
1, 2-1/2, 1/4, 1/2, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 58 mm, 3/4 in, 9/16 in, 4-3/4 in, 17 mm
7-Point, 6-Point, 8-Point, 12-Point, 4-Point
-