The STIHL GS 461 Rock Boss is built for freehand cutting of construction materials, such as concrete, natural stone, building blocks, sewage pipes, water supply lines, ductile iron and general masonry. The beauty of the STIHL GS 461 Rock Boss is the cutting precision, such as contour, corner and hole cutting to a depth of 16”. There’s no need for complex and costly tool attachments and intensive manual work. The new GS 461 Rock Boss is the tool that you’ve been waiting for. This high cutting performance concrete cutter reduces possible cutting errors and helps to save time on the construction site. Lightweight, easy handling, ergonomic design and efficient water usage are additional features of another high quality tool that you’ve come to expect from STIHL.