Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 11 mm, 1-5/16 ", 1-3/8 "
3/8, 1/2, 2-1/2, 3/4, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
36 mm, 1-7/8 in, 8 in, 28 mm, 58 mm
8-Point, 7-Point, 6-Point, 12-Point, 4-Point
-