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