Industrial and Scientific Cutting Tools require accurate and efficient measurement tools, and Based on my experience, I found this combination spiral thread counter to be a valuable addition to my toolkit. Not only does it accurately measure drill bit length, but it also counts the number of threads per inch, making it versatile for a range of applications. The compact size and durable construction make it a reliable tool that I can count on for accurate measurements every time. The only drawback is the lack of instructions that come with the product, which may make it difficult for beginners to use.