External Hex, Internal Hex, Internal Torx
5/16 ", 25 mm, 5/8 ", 1-3/8 ", 46 mm
1, 1/2, 2-1/2, 3/4, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
11 mm, 1-1/4 in, 30 mm, 70 mm, 3-3/8 in
12-Point, 6-Point, 8-Point, 4-Point, 7-Point
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