External Hex, Internal Hex, Internal Torx, External Torx
4 mm, 1-1/8 ", 1-5/16 ", 5/8 ", 7/8 "
1, 2-1/2, 3/8, 1-1/2, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
23 mm, 8 in, 13 mm, 3/4 in, 9/16 in, 1-3/16 in
8-Point, 12-Point, 7-Point, 4-Point, 6-Point
-