External Hex, Internal Hex, Internal Torx
5/16 ", 9/32 ", 5/8 ", 2-1/2 ", 9 mm
1-1/2, 1, 2-1/2, 3/8, 3/4
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
8 in, 4-1/8 in, 43 mm, 58 mm, 11/16 in
6-Point, 4-Point, 7-Point, 12-Point, 8-Point
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