External Hex, Internal Hex, Internal Torx
4 mm, 7 mm, 5/16 ", 1-3/8 ", 1-1/4 "
3/4, 1/4, 3/8, 1/2, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
4-1/16 in, 43 mm, 58 mm, 4-3/4 in, 39 mm
4-Point, External Torx, 12-Point, 7-Point, 6-Point
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