The product comes with 3 of the most common Moen faucet sizes. The one I have requires a 1 1/4" hole and this bit worked, but you have to REALLY tighten the screw or it won't bite. I'm also not sure how well it works with repeated use. In the end about 2/3 came through the plastic composite shell which was about 1/2 thick It took me multiple starts and restarts with 30 minute breaks because the beat got so hot I had to go outside and cool it down Eventually I just used a small flat head screwdriver and tapped lightly on the remaining material and it popped out. The incision was clean enough although the teeth seemed to be a bit worn. I used the smallest one for the soap dispenser and it cut well and was the PERFECT size for Moen. Soap dispenser. I used the screwdriver trick after cutting it halfway. 4 stars overall. GREAT price and good for one-time use in a kitchen sink made of hard plastic composite. Overall satisfied just wish it had instructions and the teeth were more durable Definitely recommend if you need a cheap cutter for small cuts.