Internal Hex, Internal Torx, External Hex
1 ", 4 mm, 5/16 ", 35 mm, 1-1/4 "
1/4, 1, 2-1/2, 1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
58 mm, 3/4 in, 9/16 in, 17 mm, 2-7/16 in, 2-15/16 in
8-Point, External Torx, 7-Point, 4-Point, 6-Point
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