Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 1-1/2 ", 9/16 ", 1-3/8 ", 5/8 "
3/8, 3/4, 1, 2-1/2, 1-1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
1-11/16 in, 8 in, 58 mm, 39 mm, 5/16 in
4-Point, 8-Point, 12-Point, 6-Point, 7-Point
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