This router bearing is a great accessory for precision cuts and efficient routing.It is an essential tool in the arsenal of any woodworker or carpenter. It is designed with high-level technology to ensure accuracy and smooth operation. One of the pros of this bearing is its versatility. It can be used with a wide range of router bits making it an economical and highly effective product. One con is that it might not fit all routers, so make sure to check compatibility before purchasing. OVERALL, this is a great investment for anyone in the Industrial and Scientific cutting tools industry..