This Industrial and Scientific drill bit is hard to beat! BASED on my observations, this bit is top-quality, with a solid construction that is built to last. Its sharp edge makes drilling through metal with ease while the smooth finish on the surface which makes it easier to clean after use. The only downside is the price, but considering the durability and efficiency, it's well worth the investment .Overall, I'm happy with my purchase and highly recommend it to anyone looking for a reliable drill bit..