External Hex, Internal Hex, Internal Torx
4 mm, 5/16 ", 1-5/16 ", 20 mm, 5/8 "
2-1/2, 3/8, 3/4, 1/4, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
33 mm, E7, 1-11/16 in, 8 in, 4-3/4 in
8-Point, External Torx, 4-Point, 7-Point, 6-Point
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