External Hex, Internal Hex, Internal Torx
4 mm, 5/16 ", 1-5/16 ", 5/8 ", 5.5 mm
1/4, 2-1/2, 3/4, 1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 16 mm, 58 mm, 2-1/2 in
8-Point, 7-Point, 6-Point, 4-Point, 12-Point
-