As a loyal industrial and scientific customer, I have found the TopLine Micro Drill Bit Bright Finish to be impressive in performance. As a result of using this product, I found that it easily drills through tough materials with precision and accuracy. Itβs perfect for any cutting tool application and its durability is undeniable. Unfortunately, it is only designed for precision drilling and cannot be used for larger projects. Overall, I highly recommend this drill bit for any industrial jobβ¦