Can't Stop the Squealing!

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(03-06-2017, 08:22 PM)Dr Stan Wrote: Are you plunge cutting?  If so make sure you use a center cutting end mill.

Or is the squealing coming from the mill?  What type of head is on the machine?

It is a center cutting end mill and if I do plunge, it doesn't squeal. I don't know what head it is unless you're talking about it being an R8. It is coming from the bit.