I'm thoroughly impressed with the VEVOR Tap and Die Set. The fact that it's made from bearing steel is a game - changer. This high - quality material not only makes the taps and dies incredibly durable but also allows for smooth and precise threading. I've used it on various materials, from soft metals to harder alloys, and it has never failed to deliver clean and accurate threads. Even after multiple uses, there's no sign of wear or damage. The bearing steel construction truly sets this set apart, making it a reliable choice for any threading project.