Based on STIHL’s many years of experience designing guide bars and chains, the STIHL ROLLOMATIC® G is a guide bar that is designed for the professional application of concrete and stone cutting. The bar requires no bar oil – it uses water and features internal water channels that are directed toward the cutting area. This delivers optimal cooling and debris flushing of the chain and sprocket nose. The bar also features an additional tensioning hole to further increase chain tensioner travel. The expected service life of the STIHL ROLLOMATIC® G guide bar is equal to the service life to 2-3 STIHL Diamond Abrasive 36 GBM chains. Available in 12 inch and 16 inch sizes.