Nice clean bit of kit I have tested and all working as it should. There are two of the pipe sizes missing not 100% sure what ones are missing. I’m sure anyone that knows about these will know exactly what they’re looking at. Really high quality item. Bend copper, stainless steel, carbon steel, and multilayer composite pipes up to 180° using the Rothenberger Robend 4000 Electric Tube Bender. This tool will automatically switch off when it reaches the preset bending angle making it ideal for batch production of bends. The Rothenberger Robend 4000 Electric Tube Bender also offers tool-free pre-adjustment of the bending angle and Rolub technology ensures better gliding of the bending shoe to deliver deformation- and ripple-free bending. It is powered by a 1010 watt motor. Rothenberger Robend 4000 Electric Tube Bender Key Features. Bend copper, stainless steel, carbon steel, and multilayer composite pipes up to 180°. Automatically switches off when the preset bending angle is reached. Ideal for batch production of bends. Tool-free pre-adjustment of the bending angle. Rolub technology ensures better gliding of the bending shoe. Delivers deformation- and ripple-free bending. Powered by 1010 watt motor.