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Knockout Mark
Back to TopA small protrusion, such as a button or ring of flash, resulting from depression of the knockout pin from the forging pressure or the entrance of metal between the knockout pin and the die.
Source: The OHIO State University
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A small protrusion, such as a button or ring of flash, resulting from depression of the knockout pin from the forging pressure or the entrance of metal between the knockout pin and the die.
Source: The OHIO State University