External Hex, Internal Hex, Internal Torx, External Torx
2-1/2 ", 4 mm, 7/16 ", 1-1/8 ", 9 mm
1/4, 2-1/2, 3/8, 1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
30 mm, 5 mm, 8 in, 33 mm, 4-3/4 in
7-Point, 4-Point, 12-Point, 6-Point, 8-Point
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