fat tony
CGN Ultra frequent flyer
Some time ago, I am relatively certain I saw such a product being advertised for sale. The idea was if you were going to be making parts by hand out of flat stock, you would get the outline on the metal in your layout blue. then you would make a series of double punches around the perimeter of your layout lines. The outer row of punched holes made a convenient guide for your drill bit when you chain drilled out the rough shape. I can't find any online reference to this tool. I think it might have been sold by Brownells at one time, but this could have been some time ago. Does anyone recognize what this tool is, and if so, who is selling them. Thanks Tony.