[31 RPU]

I have done several and the way I do it is get a large nail and a pair of vise grips. Hold the nail in the vise grips and heat it with a torch until red. I had already located the holes in the frame so all I had to do was insert the nail in the hole and wallow it around until the hole was the same size as the hole in the frame. Do this in a well ventilated area. It worked for me and the holes were perfect.