Internal Hex, Internal Torx, External Hex
2-1/4 ", 5/16 ", 2-1/2 ", 7 mm, 5/8 "
1/4, 3/4, 1-1/2, 3/8, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
1-1/8 in, 8 in, 13/16 in, 58 mm, 3/4 in, 9/16 in
4-Point, 7-Point, 6-Point, 8-Point, 12-Point
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