With its superior performance and simple operation, the Blue Bullet BB-2 exhaust pipe bender will hold a special place in your shop. We took our standard bender and equipped it with a knee valve and degree plate combination for a straightforward, rugged design that will never let you down. The knee operated valve gives you precise control and hands-free bending capabilities. Simply push the lever to the left to advance the bending die and then to the right to retract it. Heavy-duty cast iron construction guarantees that the valve will stand up to years of heavy use.