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