External Hex, Internal Hex, Internal Torx
2-1/2 ", 4 mm, 10 mm, 1 ", 21 mm
1/2, 1-1/2, 3/8, 2-1/2, 1/4
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
43 mm, 60 mm, 36 mm, 8 in, 28 mm
External Torx, 8-Point, 7-Point, 6-Point, 4-Point
-