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