Esco Tool introduced an air-powered portable pipe machining tool for preparing a wide range of different size piping systems for welding. The Mini-Millhog is a portable pneumatic ID clamping beveling tool for machining tube and pipe from 1.25 in. ID to 6.625 in. OD that is self-centering with one mandrel covering the majority of the range. Featuring a working weight of 27.5 lbs., this high torque tool is easy to handle and provides smooth chatter-free operation on highly alloyed stainless steel and heavy wall pipe without using cutting fluids. Also available with an electric motor, this versatile tool can remove tube weld overlay and membrane cladding in boiler systems.