There was a time when doing the deep clean on a carb scared the hell out of me. I noticed that I was amassing a large number of welch plugs. As usual I looked to Youtube for how to remove them. Using a vice and a towel just didnt appeal to me. Using the self centering punch worked fast and easy. It hasnt failed me yet and the scary old vice is out of the equation. All is good and I hope this helps someone.