Dahle Shredder Line features an advanced EvenFlow Lubricator, also known as Auto-Oiler, in shredders for ultimate user convenience. Dahle EvenFlow Lubricator is a built-in Auto Oiling System to provide continuous lubrication to the precision milled cutting cylinders for peak shredder performance. Eliminate the need for manual oiling and forget about shredder wear with Dahle Auto-Oiler Shredders.