Woodpeckers RS-2 - Rule Stop 2in. Take any rule, add a stop and repetitively accurate marks are at Woodpeckers' finger tips. This approach is a tried and true marking method for woodworkers. The rule stops from Woodpeckers are must have router accessories. The Woodpeckers Rule Stop-2 shown here is large. Sized to fit rules up to 2-1/4in wide exactly like Woodpeckers Woodworking Rules. It is also 2 inches long. The screw and posts are stainless steel, the knob is brass and the two body parts are machined aluminum blocks and anodized for decades of consistent performance. Typical of Woodpeckers, they machine their own tools to ensure top notch quality and full control of every step of the manufacturing process.