The Esco Wart MILLHOG is a portable pipe beveller that sets up fast and provides precise, perfectly square bevels on either torched-off or rough-cut pipe for better weld integrity. The milling machine uses a self-centering draw rod assembly that fits into the pipe I.D. and has a mandrel with expanding clamps for rigid mounting. This tool can bevel, face and bore simultaneously with ±0.001 inch accuracy to provide perfectly square pipe ends featuring any angle of prep. Suitable for tube and pipe from 0.750 inch I.D. to 4.5 inches O.D., it runs at 98 RPM, which makes it ideal for highly alloyed materials or carbon steel.