Based on my experience using this 6-piece tungsten aluminum set, it's a trustful choice for anyone in need of industrial strength hole saws. The saws themselves are incredibly efficient and durable, which is great for those in the construction and home improvement field. The only downside is that the cutting process can be slightly noisy, so ear protection is highly recommended. Overall, a great investment for anyone looking for top-quality cutting tools in the Industrial and Scientific category.