Originally Posted by JohnG
If you mean the spring loaded center punch that you just push until it clicks, that is what I have and will use. I am going out there tonight to start on those so I guess I will have a report on that later on.
Yes, John. That is what I mean. It took about 10 "hits" before mine acutally broke, but when it did, it went perfect. I also covered the inside pane with clear packaging tape so I could see what was happening, while also preventing any potential glass blowing my way.