Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 7/16 ", 1-1/8 ", 20 mm
3/4, 1-1/2, 1/4, 3/8, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
4-3/8 in, 3/4 in, 9/16 in, 8 in, 43 mm, 17 mm
12-Point, 4-Point, 8-Point, 7-Point, 6-Point
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