Circular saw rip guide/rail attaches to the Bora WTX saw plate (Model 542006) and keeps circular saw straight and level for the entire cut. Eliminates guesswork and wasted material. Makes straight cuts up to 24 In. Two-part tool - the extruded aluminum rail attaches to the saw plate and the rip handle, and both hands guide circular saw straight. Quickly change over to cross cuts by using the saw plate with the WTX clamp edge (sold separately).