External Hex, Internal Hex, Internal Torx
1-1/2 ", 10 mm, 1-3/8 ", 5/8 ", 7/8 "
1-1/2, 2-1/2, 3/4, 3/8, 1/4
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
4-1/8 in, 4-3/4 in, 39 mm, 2-1/2 in, 1-3/8 in
6-Point, 12-Point, 4-Point, External Torx, 7-Point
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