This Cobalt Finish Overall is definitely a game-changer in the Industrial and Scientific world. As a result of using this product I found that it cut through tough materials with ease and precision. The overall build quality of the drill bit was impressive and it lasted me longer than most other bits I`ve used before. The only drawback was the price, but for the quality and performance, it's worth every penny. Highly recommended for anyone looking for top-quality cutting tools..