Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 7/16 ", 5.5 mm, 1-1/4 "
1/2, 2-1/2, 1-1/2, 3/8, 3/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
56 mm, 3-3/4 in, 5 mm, 8 in, 13 mm
External Torx, 6-Point, 7-Point, 8-Point, 4-Point
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