Hello cheaks, Welcome to the forum! I must agree with all the others, My guess, is that the bits are new? then if You have a variable speed, the speed may be set to slow. The smaller bits use a higher speed. the larger bits go slower the speed. If You are making the cut with one pass, that can burn as well. I would almost take two passes, or three, for bigger bits, the last pass is what I call a skim cut. that one is to shave the cut to give it best quality. Thanks for joining.
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