If you need to bend big pipe, really big pipe, then the RDB-500 is the perfect rotary draw bender for you. The RDB-500 has a maximum capacity is 3" Schedule 40 pipe, 3" square,& 3.5" round tube (.188 wall mild steel). The maximum center line radius is 12" (depending on wall thickness, and material). The RDB-500 pipe bender has one shot bending up to 206 degrees without stopping or ratcheting and is variable speed as controlled by the operator via a foot pedal. The RDB-500 also has a digital auto-stop that will accurately