External Hex, Internal Hex, Internal Torx
3/16 ", 2-1/2 ", 7/16 ", 1-1/2 ", 9/16 "
3/4, 1/4, 1/2, 3/8, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 1-1/4 in, 43 mm, 3/4 in, 9/16 in, 4-3/4 in
8-Point, 12-Point, 6-Point, 7-Point, 4-Point
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