External Hex, Internal Hex, Internal Torx
4 mm, 20 mm, 1-3/8 ", 5/8 ", 7/8 "
1/4, 2-1/2, 3/8, 1/2, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
36 mm, 5 mm, 8 in, 39 mm, 2-1/2 in
External Torx, 6-Point, 12-Point, 8-Point, 7-Point
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