The Stihl GS 461 Rock Boss concrete cutter is a lightweight, handheld unit for deep cutting tasks, designed plunge cuts, shaping square corners, and cutting concrete pipes in trenches, cinder blocks, masonry bricks, asphalt, and soft stone.
Its gas engine achieves low exhaust emissions and 13,500 max rpm, the company says. It cuts up to a depth of 15.7 inches and can also be used for tasks such as squaring out corners or cutting openings in pipes and culverts. The two chain-tensioner mounting holes allow the user to increase the length of the guide bar to compensate for chain stretch while the side-access chain tensioner allows for easy tightening, loosening, or changing of the 36 gbm Stihl diamond abrasive saw chain. The heavy-duty, 2-stage HD2 air filtration system features a washable PET filter element and a fine-mesh auxiliary filter to help protect the engine.
