Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 1-5/16 ", 18 mm, 1-3/8 ", 5/8 "
3/4, 1/4, 3/8, 1-1/2, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
58 mm, 3/4 in, 9/16 in, 4-3/4 in, 39 mm, 2-15/16 in
4-Point, 6-Point, 7-Point, 8-Point, 12-Point
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