External Hex, Internal Hex, Internal Torx
3/16 ", 2-1/2 ", 4 mm, 15/16 ", 1-1/4 "
1/2, 1-1/2, 2-1/2, 3/4, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-1/16 in, 4-1/8 in, 58 mm, 3/4 in, 9/16 in, 2-15/16 in
12-Point, 8-Point, 4-Point, 6-Point, 7-Point
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