External Hex, Internal Hex, Internal Torx, External Torx
5/16 ", 1-1/2 ", 1-5/16 ", 5/8 ", 5.5 mm
2-1/2, 3/8, 1-1/2, 1/4, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3-9/16 in, 8 in, 2-7/16 in, 2-15/16 in, 17 mm
4-Point, 6-Point, 8-Point, 7-Point, 12-Point
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