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