Yet another of my amazing Discoveries of Original Shelby's waiting to be rescued from the depths of Demented owners swearing they are going to "Get around to fixing her up someday"!!
The bonnet lip was variable thickness which made fitting a seal rubber difficult. This tool was lashed up by fixing a metal guide to a drill with Jubilee clips and using a milling bit. Worked very well as can be seen form the amount of fibreglass swarf.