As a frequent user of cutting tools in the industrial and scientific field, I highly recommend this set of mini taps threading dies. As my tests showed these dies are incredibly durable and perfect for small projects that require precision. The threading is consistent and accurate, making the entire process fast and efficient. The only downside is that this set only includes a limited range of sizes, so it may not be suitable for larger projects. Overall, i believe this is a great investment for those in need of reliable threading DIES..