I am a DYI'r, I am looking for a saw blade to cut Marble, Granet, and Travertine that will not chip the edges of the cut. I am looking at the Target Superlox GM blade which claims to cut chip free. I have a 7" tub saw. The blade is expensive $140 but I would be fine with that if it works as advertised. Any experience with the product?? Any other suggestions??? Also while rooting through the Target catalog I found a product called Dri Bit for cutting round holes in ceramic and stone in 1", 1 3/8", 1 5/8", and 2", I thought it might be useful in the shower; again the same questions. Great forum, thanks for the opportunity.