but if you are having trouble with tear out on the ends, use a router table with a fence. This is one place where a bearing alone doesn't work well.
You have to take the shelf out, at least with almost all the bits except for a straight 45 degree chamfer and where the shelf front and carcase sides are flush, to cut successfully.
If this doesn't answer the problem, tell us more.
Henry in MI
© 2016 Renovate Your World LLC