The Amana Tool router bit I recently purchased exceeded my expectations. Industrial and scientific in design, it provides precise and clean cuts for my woodworking projects. Based on my observations, the carbide spektra coating on the bit prolongs its longevity, making it cost-effective in the long run .The only downside is that it's a bit pricey compared to other router bits on the market. However, the QUALITY of the cut it produces makes it worth the investment..