I bought this attachment to fit my coffee grinder. My goal was to enlarge the hole in my granite countertop to make room for the new faucet. This nozzle did a very short job, removing about 1/2 inch of material in seconds. She was very easy to deal with, she did a great job. At first I was very skeptical about the project. I can't say anything about the durability of this nozzle. , but for my purposes it still looks brand new after the job is done.