Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 7/16 ", 5/16 ", 1-3/8 "
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
2-1/2 in, 13 mm, 35 mm, 5/16 in, 3-3/8 in
6-Point, 4-Point, 12-Point, 7-Point, 8-Point
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