Esco Tool, headquartered in Holliston, Massachusetts, has released a heavy-duty, ID-clamping pipe milling end prep tool that can bevel and face in one operation, including any degree of end prep and compound bevels. The Prepzilla MILLHOG can produce end preps on all wall thicknesses at any angle, without cutting oils. It is suitable for hard-to-machine materials such as superduplex and P91. Featuring one mandrel and eight sets of interchangeable clamps for the full working range of the tool, it is suitable for pipe from 1-1/2in. Capable of counterboring for aligning different schedules of pipe, the tool is supplied as a complete kit with all clamp ribs and pads, a hose and filter, lubricator, and a metal carrying case.