This Stihl ROLLOMATIC E Mini guide bar combines a lightweight design with incredible stability to offer a safe, easy to use option. With its small size, this guide bar will find itself at home on pole pruners and other arborist applications. It uses a sprocket on the nose to carry the saw chain from the top to the bottom of the bar, which reduces wear and allows for a narrower bar nose, a great characteristic for jobs that require a lot of use from the bar nose like limbing and boring. | STIHL 12" ROLLOMATIC E Mini .043" Gauge Chainsaw Guide Bar