External Hex, Internal Hex, Internal Torx
2-1/2 ", 9 mm, 5/8 ", 1-3/8 ", 21 mm
1, 3/8, 2-1/2, 1-1/2, 3/4
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
70 mm, 4-3/4 in, 39 mm, 26 mm, 1-3/8 in
8-Point, 4-Point, 7-Point, 6-Point, 12-Point
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