Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 7/16 ", 5/16 ", 20 mm
3/4, 3/8, 1/4, 2-1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-3/16 in, 3-9/16 in, 36 mm, 8 in, 2-7/16 in
8-Point, 4-Point, 12-Point, 6-Point, 7-Point
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