As a compact, midrange electric wall saw, the DS TS20-E cuts depths up to 21 in. The electronic control system maintains constant torque with all blade diameters from 24 to 48 in. At only 77 lbs., the entire set of equipment transports on two practical trolleys. With the locking mechanism built into the hand grips, the saw head can be mounted on the rail without the need to change hand positions. Hilti Inc. 800-879-8000.