Raisman guide bars are made of the following major procedures: cold rolling, annealing, heat treatment, hardened rail, surface grinding, coating, stress relief. These provide the best wear resistance, strength, durability, straightness, and elasticity. It is ideal for users seeking professional-grade guide bars, which can be used under most of the demanding and severe working conditions, and suitable for most chainsaw brands and models. Click here to view chains for this bar;