Internal Hex, Internal Torx, External Hex
2-1/4 ", 7/32 ", 2-1/2 ", 4 mm, 5/8 "
2-1/2, 1, 3/4, 1-1/2, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3-9/16 in, 1-7/8 in, 8 in, 39 mm, 11/16 in
7-Point, 6-Point, 4-Point, 12-Point, 8-Point
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