Grinding chuck jaws? Practical Machinist
May 15, 2019· This may be due more to a scraping action as the scroll plate cocks sideways, than to actual pressure. As far as run out is concerned, the larger share of the uneven chuck wear/damage will be on the scroll. And that means that grinding the jaws is not going to improve the runout in most cases. The scroll would need to be reground.
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