Internal Hex, Internal Torx, External Hex
2-1/2 ", 5/16 ", 1-1/2 ", 5.5 mm, 11 mm
2-1/2, 3/8, 3/4, 1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-15/16 in, 8 in, 58 mm, 3/4 in, 9/16 in, 17 mm
4-Point, 7-Point, 12-Point, 8-Point, 6-Point
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