Milwaukee guide rails are designed to work with the Milwaukee M18 FUEL 6-1/2 in 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.