This Milwaukee® 31" guide rail (48-08-0570)  is designed to work with the MILWAUKEE® M18 FUEL™ 6-1/2" Plunge Track Saw (2831-20). Delivering users the ability to make laser-straight cuts while being more portable than using a table saw. The track saw guide rails include an anti-splinter strip to help keep the cut edge smooth, non-slip pads on the bottom of the rail to keep it from sliding during cuts, and anti-friction strips on the top of the rail to allow the saw to glide across it during the cut.