Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 7/16 ", 1-5/16 ", 46 mm
1/4, 1/2, 2-1/2, 1-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
36 mm, 8 in, 1-3/8 in, 7/8 in, 17 mm
External Torx, 6-Point, 7-Point, 8-Point, 4-Point
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