Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 5/16 ", 30 mm, 9 mm
2-1/2, 3/8, 1-1/2, 1, 3/4
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-1/8 in, 8 in, 21 mm, 4-1/16 in, 58 mm
4-Point, 8-Point, 7-Point, 12-Point, 6-Point
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