The only bit you need to make a complete window sash. The bearing guide controls the pattern depth and also allows you to make arched or curved windows and glass doors.
With the straight end cutter, this assembly cuts the inside edges on both the stiles and the rails. Convert the assembly to make the mating end cut by exhanging the straight cutter for the included spacer.
Set can also be used to make the decorative end cuts and mating end cuts required to make the window mullions.
2 carbide tipped flutes. USA