External Hex, Internal Hex, Internal Torx, External Torx
5/16 ", 1-1/8 ", 1-5/16 ", 5/8 ", 21 mm
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
8 in, 4-1/16 in, 1-3/8 in, 5/16 in, 3-3/8 in
12-Point, 8-Point, 4-Point, 7-Point, 6-Point
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