I was cutting some drawers on my PC dovetail jig and was repeatedly having tear out problems with the pins (the vertical piece). I was using half inch baltic birch ply. I do a few things to try and prevent this but I still had some problems yesterday. I make a scoring pass before I start to cut the pins and I move the router from right to left. The scoring helps somewhat but I still had too many instances. I adjusted the speed of my router and it seemed to me that the higher the speed the better the results. I can't imagine the bit being dull. I've only used it a couple of times. Has anyone else had this problem?
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Pin tear out on dovetail jig