Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 1-5/16 ", 15/16 ", 1-3/8 "
2-1/2, 3/4, 1-1/2, 3/8, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3/8 in, 35 mm, 8 in, 3/4 in, 9/16 in, 15/16 in
12-Point, 8-Point, 6-Point, 7-Point, 4-Point
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