Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 25 mm, 9 mm, 1-1/8 ", 1-3/8 "
3/8, 1/4, 3/4, 1/2, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3/8 in, 8 in, 39 mm, 7/16 in, 3-3/8 in
4-Point, 7-Point, 6-Point, 8-Point, 12-Point
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