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I want to cut some 3" PVC with my miter saw and I'm wondering if this would dull my blade. I think its a 60 or 80 tooth Diablo blade.

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up vote 5 down vote accepted

Absolutely not!! Go for it, but hang on tight to the pipe, it has a tenancy to roll in a chop saw.

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Also watch out for flying pieces, especially when making small cuts (eg <2" off the end) as the blade can send the offcut a pretty good distance. I've also had central vac tube -- which is 2" thin-walled PVC -- actually shatter into several flying pieces from bringing the blade down too fast. Just a reminder to always wear eye protection! –  gregmac Feb 25 at 23:28
    
Yep, go slow, don't rush the cut. –  shirlock homes Feb 26 at 0:17

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