External Hex, Internal Hex, Internal Torx
4 mm, 5/16 ", 11 mm, 1-3/8 ", 1-1/4 "
3/8, 3/4, 1-1/2, 1/4, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 1-3/4 in, 39 mm, 2-1/2 in, 3-3/8 in
8-Point, 7-Point, 4-Point, 12-Point, 6-Point
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