Internal Hex, Internal Torx, External Hex, External Torx
1-1/2 ", 9 mm, 10 mm, 1-3/8 ", 21 mm
1-1/2, 1/4, 1/2, 3/8, 3/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 58 mm, 39 mm, 2-1/2 in, 1-3/8 in
6-Point, 8-Point, 4-Point, 12-Point, 7-Point
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