Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 5.5 mm, 5/8 ", 7/8 "
1-1/2, 3/4, 2-1/2, 3/8, 1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
3/4 in, 8 in, 43 mm, 13/16 in, 35 mm
6-Point, 8-Point, 4-Point, 7-Point, 12-Point
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