Internal Hex, Internal Torx, External Hex
1-1/8 ", 5.5 mm, 1-3/8 ", 5/8 ", 7/8 "
1/2, 1, 1-1/2, 3/4, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-1/16 in, 58 mm, 4-3/4 in, 26 mm, 5/16 in
External Torx, 7-Point, 6-Point, 8-Point, 4-Point
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