Internal Hex, Internal Torx, External Hex
4 mm, 5/16 ", 25 mm, 1-1/8 ", 9/16 "
1-1/2, 1/2, 1/4, 3/8, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
5 mm, 8 in, 16 mm, 39 mm, 3-3/8 in
12-Point, 8-Point, 7-Point, 6-Point, 4-Point
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