The Milwaukee guide rail is designed to deliver precise straight cuts for the professional carpenter and remodeler. Compatible with the MILWAUKEE 6-1/2 Plunge Track Saw (2831-20) the guide rail features anti-slip strips to keep the track from moving during cuts and an anti-splinter edge strip to help make splinter-free, finish quality cuts. The guide rail is also compatible with the Milwaukee rail clamps, rail connectors, and track bag.