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Indeed. That metal dust is some tough stuff to breathe.

I'm curious, why do you not want to spin up the cutter before touching the surface?

Thanks.




On a small shank cutter it's really not that big of a deal but when you get to a long shank to get down into the runners if you let it free spin it can and will bend over and "helicopter" right at the collet.

To much unsupported mass spinning at those speeds gets out of balance real quick. DAMHIK