Tearout when routing dados

Article - June 27, 2007

This week’s question comes from Ralph. He writes:

When I rout a dado or rout a dovetail socket, I get tearout at the beginning and end of the cut. What options other than kniving the outline of the dado or socket?

And here was my reply:

“Hey Ralph. By far, the easiest thing to do is take a couple pieces of scrap that are the same thickness as your workpiece, and butt them up against the ends. Its a good idea to clamp them into place. The scrap pieces will essentially sandwich the workpiece. So when you start and finish the cut, the fibers of the workpiece will be completely supported and there should be little to no tearout. Hope that helps.”

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