External Hex, Internal Hex, Internal Torx
2-1/2 ", 8 mm, 1-1/8 ", 9/16 ", 35 mm
3/8, 1/2, 2-1/2, 1/4, 3/4
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
8 in, 19 mm, 4-1/8 in, 13 mm, 2-15/16 in
8-Point, 6-Point, 4-Point, External Torx, 7-Point
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