Using these carbide tipped dovetail cutting tools, our industrial and scientific team found that they delivered precise and efficient cuts. The quality of the tools were apparent as we used them to make shallow and deep cuts without any issues. The fit and finish of the cuts were excellent and met our expectations... The only con we found was the price, which is slightly higher than other router bits in the market. However, the higher quality and precision justify the cost in the long run. We highly recommend these cutting tools to anyone in need of precise and consistent results..