The Milwaukee 0740-22 M28 28 volt 6-7/8 inch Metal Cutting Saw kit is designed to cut all types of metals including uni-strut, galvanized pipe, metal studs and black pipe, as well as Hardi-Plank and Durock materials. The saw utilizes the M28 Lithium-Ion battery technology, which has a longer run time then standard 18 volt batteries.  This saw has some great built in features such as an electric brake for quick, repetitive cutting, an LED light and clear guard, which both provide an improved line of sight while cutting.