External Hex, Internal Hex, Internal Torx
7/16 ", 7 mm, 5/8 ", 15/16 ", 1-3/8 "
2-1/2, 1/4, 3/8, 1-1/2, 3/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 39 mm, 35 mm, 3-3/8 in
8-Point, 4-Point, 6-Point, 12-Point, 7-Point
-