External Hex, Internal Hex, Internal Torx
4 mm, 8 mm, 1-5/16 ", 27 mm, 5/8 "
2-1/2, 3/4, 1-1/2, 3/8, 1
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
70 mm, 4-1/8 in, 58 mm, 4-3/4 in, 2-1/2 in
6-Point, External Torx, 12-Point, 4-Point, 7-Point
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