Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 25 mm, 1/2 ", 7/8 ", 1-1/4 "
1-1/2, 2-1/2, 1/2, 3/8, 1/4
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
2-1/4 in, 8 in, 1-3/8 in, 2-7/16 in, 5/16 in
4-Point, 12-Point, 7-Point, 6-Point, 8-Point
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