Internal Hex, Internal Torx, External Hex
5.5 mm, 15/16 ", 1 ", 1-3/8 ", 21 mm
1-1/2, 1/2, 1, 2-1/2, 3/8
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
8 in, 33 mm, 3/4 in, 9/16 in, 2-1/2 in, 15/16 in
8-Point, 12-Point, 6-Point, 7-Point, 4-Point
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