Features included a precision cutter with a viewing port to check the angle of the cut, an extra-long clean out rod that snaps in place when not in use, and a rotating barrel for corners and hard-to-reach places. The rugged composite construction weighs up to 40% less than other models. The ergonic grip has been designed to keep the wrist in a natural and balanced position. 12:1 ratio is recommended for acrylics, silicones, elastomerics, or latex. Accommodates standard 10 oz. cartridge.