Internal Hex, Internal Torx, External Hex, 6-Point
6 mm, 5/16 ", 9/16 ", 1-3/8 ", 5/8 "
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
3/4 in, 9/16 in, 39 mm, 2-1/2 in, 13 mm, 2-15/16 in
4-Point, 12-Point, 8-Point, External Torx, 7-Point
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