Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 1-5/16 ", 5.5 mm, 15/16 ", 1-3/8 "
2-1/2, 3/4, 1/4, 1, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 30 mm, 4-1/8 in, 4-3/4 in
12-Point, 4-Point, 7-Point, 8-Point, 6-Point
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