based on my experience the WOODHERO tungsten router bits are a game-changer in the industrial and scientific sector. With their high precision proofreading technology, this cutting tool ensures a smooth and clean cut on all types of materials. One pro is that it can withstand heavy-duty usage without losing its sharpness .One con is that it may not be suitable for beginners due to its high level of precision. Overall, this router bit is a reliable and trustworthy investment for any professional woodworker..