Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 9 mm, 25 mm, 5/8 "
1-1/2, 3/8, 1, 2-1/2, 3/4
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
2-1/4 in, 1-1/8 in, 8 in, 5/8 in, 3-3/8 in
12-Point, 8-Point, 6-Point, 7-Point, 4-Point
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