Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 6 mm, 5/8 ", 1-3/8 "
2-1/2, 1-1/2, 1, 3/4, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
5 mm, 15/16 in, 8 in, 5/8 in, 3/4 in, 9/16 in
External Torx, 4-Point, 6-Point, 12-Point, 7-Point
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