Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 5/8 ", 5.5 mm, 1-3/8 "
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3/4 in, 9/16 in, 4-3/4 in, 39 mm, 1-3/8 in, 2-15/16 in
6-Point, External Torx, 12-Point, 7-Point, 4-Point
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