[Snakebit]

I took a short block of wood and drilled a 1/2' hole through the center. Cut the block in half through the center of the hole. Use the 3M paper with the sticky backing and press the sand paper in the half moon shaped hole to round the edge. You can use a amall piece of PVC pipe cut in half also. I used this method using different pipe diameters to round the fender lips, front grill opening, dashboard edge, and rear cowl edge. Worked great using the sticky back sand paper. Buy it by the 3" wide roll and save money. Hope this helps.