Answer
Sep 01, 2016 - 12:00 AM
Unfortunately we do not have any depth stops that can work with flat bottom counterbore bits number 630-700 and 608-136, or with any other 1/2" counterbore with 1/4" drill bit.
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Sep 01, 2016 - 12:00 AM
We’ve provided several answers to questions related to Flat Bottom Counterbores with Slow Spiral, HSS M2 Fully Ground Drill Bits , see some other helpful Q&A related to this product.
Question: Will these work on metal (aluminum)?
Answer: These really not meant for metals, but you may want to test.
If you order one we suggest that you reduce the RPM to 4,000 and use lubricant when drilling
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