|..DON'T FORGET TO ADD THIS LABOUR SAVING DEBUR TOOL TO YOUR BEADLINER ORDER... Just one or two gentle spins of this tool removes the bur from the tubing ends instantly, leaving a perfectly chamfered end, which translates to a smooth, shiny, perfectly shaped rivet edge. They make a nice 30 degree chamfer around the inside which then becomes the outside top edge. This makes a much nicer finished professional appearance. Just about 3 seconds per end. It's effortless! and well worth the investment.