As a hesitant buyer looking for a reliable drill bit, I stumbled upon this option in the Industrial and Scientific category .As a result of my tests, I determined that this drill bit is a high-quality option in the Cutting Tools market. the straight shank design provided easy insertion and the high speed of 16.5mm made drilling a breeze. The only downside is the price but it's definitely worth the investment for the durability and precision it provides..