External Hex, Internal Hex, Internal Torx
4 mm, 7 mm, 5/16 ", 1-3/8 ", 7/8 "
1, 3/4, 1/2, 2-1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-1/16 in, 43 mm, 1-3/4 in, 3/4 in, 9/16 in, 4-3/4 in
7-Point, 6-Point, 4-Point, 12-Point, External Torx
-