I need this to replace the stone tiles in our shower room where the drain fits. I thought the job would be difficult, but with this tool, it was easy. I marked where I wanted to cut the circle on the stone tile, took it outside, propped it up with a 2x4, switched on the hose with a trickle of water and cut it out. You have to start cutting carefully, but that was easy too. it fit perfectly. Thank you!