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