Industrial and Scientific enthusiasts, this drill bit is a gem for you! Based on our own experience, this cutting tool makes drilling through tough materials like steel as smooth as butter.The Ferrous Oxide coating is very efficient in reducing friction, which helps save a lot of time while drilling. although the price may not be the most competitive out there the performance of this drill bit definitely makes up for it. However, it may not be suitable for softer materials as it can easily skip and cause damage. Overall, highly recommend this amazing product!