External Hex, Internal Hex, Internal Torx, 6-Point
2-1/2 ", 5/8 ", 5.5 mm, 1-3/8 ", 7/8 "
1, 1-1/2, 1/4, 2-1/2, 3/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 17 mm, 1-3/8 in, 7/8 in
12-Point, 8-Point, External Torx, 7-Point, 4-Point
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