It will de dee if you have one that's got a round heated tip. I have an old electric soldering iron that has changeable tips. The tip I use has a 4 sided point and is about the size of Bic ball point. The trick is the slide the hot tip, (the rounded part) over the edge fast enough to keep it from melting a dip. Will have to repeat it several times to get rid if all the sharp stuff. Once all the melted plastic from the cutting has cooled, you can pop it off with your finger nail. It's like anything else you do, the more times you do it, the better it works. If you have an old scrap wind screen you could practice on, it might help. Good luck buddy
