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