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