Internal Hex, Internal Torx, External Hex
2-1/2 ", 8 mm, 5/16 ", 1-5/16 ", 1-3/8 "
2-1/2, 1, 3/4, 1-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-3/4 in, 39 mm, 2-1/2 in, 1-3/8 in, 35 mm
8-Point, 7-Point, 12-Point, 6-Point, 4-Point
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