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