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