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How long should a spiral bit last?

Posted: Mon Nov 08, 2010 6:57 am
by ttw06
I know this questions depends on a lot of variables, but I was curious to see what other peoples experiences were. I cut a lot of 3/4" profiles in oak, walnut, and melamine, and it seems like I buy spiral bits constantly. I use a feed rate of 75 in/min with a cut depth of .22 in. I also use solid carbide bits. I would appretiate any suggestions for feed rate, depth of cut, brand of bit, or any comments you have. Thanks