Internal Hex, Internal Torx, External Hex, External Torx
4 mm, 5/16 ", 1-5/16 ", 27 mm, 5/8 "
1/2, 3/8, 2-1/2, 1-1/2, 3/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
28 mm, 4-1/16 in, 39 mm, 5/8 in, 7/16 in
12-Point, 6-Point, 8-Point, 7-Point, 4-Point
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