Internal Hex, Internal Torx, External Hex
3/16 ", 2-1/2 ", 25 mm, 5.5 mm, 1-3/8 "
3/8, 1/2, 1/4, 1-1/2, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 11 mm, 1-1/8 in, 3/4 in, 9/16 in, 2-15/16 in
12-Point, 6-Point, 7-Point, 8-Point, 4-Point
-