When I tried this tool in my metalworking project, I was impressed with how smooth and precise it was.The spiral shape of the rotary helped me achieve intricate drilling with ease and accuracy. Its long-lasting durability is a testament to its high-quality construction and it is an excellent addition to my toolkit. Its only downside is that it can be a bit pricier than other industrial drill bit options, but I believe its performance justifies the cost. Overall, I highly recommend this top-of-the-line industrial and scientific rotary tool..