Internal Hex, Internal Torx, External Hex, 6-Point
5/16 ", 5/8 ", 2-1/2 ", 4 mm, 1-3/8 "
1/4, 3/8, 3/4, 2-1/2, 1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
8 in, 28 mm, 1-3/8 in, 2-7/16 in, 11/16 in
4-Point, External Torx, 12-Point, 7-Point, 8-Point
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