The STIHL GS 461 ROCK BOSS® gives professionals the ability to make deep cuts (up to 15.7” deep) in concrete, reinforced concrete (with rebar up to ½ inch), cinder blocks, masonry bricks, asphalt and soft stone, such as sandstone. The GS 461 ROCK BOSS® is also lightweight, compact and delivers excellent cutting performance, handling and operator comfort. Its heavy-duty HD2 air filter technology provides longer run times between air filter maintenance. This revolutionary concrete cutter will make a worthy addition to your next construction or renovation job.