I am new to woodworking and want to buy an economical set of tongue and groove router bits. Has anyone had any experience with the 1/2 inch 11 piece router bit set found on Ebay. The Ebay vendor is ghsu2ia3 (20205). This appears to be a good bargain if the quality is there. I prefer USA made products but have no objections if the set is made in China if the quality is up to par.