I have a Craftsman Router table. The router base that came with it reads, “ Model C911 Router Base, Type 2”. I have a Porter Cable Router that twist mounts in it to allow the blades to sit above the table surface. Typical. There is a twist lock to fix the router position depthwise. A small piece of the cylindrical router base has snapped off. The router itself appears to be well seated in the base and locks solidly. Is it ok to still use? I cannot find a replacement as Craftsman no longer appears to make it as a separate part.