External Hex, Internal Hex, Internal Torx
4 mm, 1-5/16 ", 15/16 ", 5/8 ", 7/8 "
1/4, 3/8, 2-1/2, 3/4, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 19 mm, 3/4 in, 9/16 in, 1-3/16 in, 4-3/4 in
12-Point, 8-Point, 7-Point, 6-Point, 4-Point
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