Internal Hex, Internal Torx, External Hex
8 mm, 1-1/2 ", 9/16 ", 1-3/8 ", 21 mm
3/8, 3/4, 1/2, 2-1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-3/4 in, 39 mm, 2-1/2 in, 1-3/8 in, 26 mm
4-Point, External Torx, 7-Point, 8-Point, 6-Point
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