If you want to make a bend on a 4.5 radius die, and you want that bend to be 10 inches from the end of a piece of tube, mark a line on the tube 10 inches from the end. The bend offset is the distance between the start of the bend and where you line up the tube in the machine. The Rogue Fabrication bender has a fixed bend offset for every radius of die. In bending 101, you will learn how to put a bend where you want it, based on where the bend starts, and how to bend the right amount. Bending Tube with a Rogue Model 600 Bender, 101: The basics
