Installs in a few minutes to any M600 purchased made after November 2014. Adjustable backstop allows you to set a stop point to repeat bend spacing with excellent precision. Adjusts in seconds, with a separate precision adjustable zero, UHMW slides for a perfect glide on the carriage that stops the tube when it’s loaded into your M600. Ships powder coated and assembled. Maximum spacing from start of bend to end of tube is 54″.