Internal Hex, Internal Torx, External Hex
2-1/2 ", 9 mm, 5/16 ", 1-1/2 ", 7/8 "
1-1/2, 1/4, 3/8, 3/4, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 16 mm, 8 mm, 2-1/2 in, 5/16 in
7-Point, 8-Point, 12-Point, 6-Point, 4-Point
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