Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 1-1/2 ", 27 mm, 5/8 ", 1-3/8 "
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-11/16 in, 8 in, 5/8 in, 1-3/8 in, 3-3/8 in
12-Point, 7-Point, 6-Point, 8-Point, 4-Point
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