Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 1-3/8 ", 5/8 ", 1-1/4 "
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
56 mm, 8 in, 28 mm, 3/4 in, 9/16 in, 39 mm
12-Point, 6-Point, 7-Point, 4-Point, 8-Point
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