Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 1-1/8 ", 23 mm, 1-3/8 "
2-1/2, 1, 1/2, 3/4, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 16 mm, 4-3/4 in, 11/16 in
4-Point, External Torx, 12-Point, 7-Point, 6-Point
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