Or, look here but hurry. Similar but you may be able to pretty easily
make
your own replacements.

http://www.rockler.com/product.cfm?p...ro%20clearance

I have the Wood Dynamics insert and love it, but the Betterley Tru-Cut is
good also.
I have done a review of the Betterley Tru Cut here
http://www.onlinetoolreviews.com/rev...rleytrucut.htm

Hope it helps.

--
Regards,

Dean Bielanowski
Editor
OnlineToolReviews.com
http://www.onlinetoolreviews.com
Over 150+ free tool reviews online!