External Hex, Internal Hex, Internal Torx, External Torx, 6-Point
2-1/2 ", 6 mm, 26 mm, 5/8 ", 1-3/8 "
2-1/2, 3/8, 1/4, 1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
5 mm, 8 in, 1-3/4 in, 58 mm, 1-1/2 in
4-Point, 7-Point, 8-Point, 12-Point
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