According to my experience this spiral straight electric drill bit is perfect for my industrial and scientific needs.It is made of high-quality materials and performs flawlessly for cutting through any hard surfaces. The best thing about this cutting tool is its precision and accuracy that prevents any deviation while drilling. However, the only downside is its slightly higher price, but the quality justifies the cost. Overall, I would recommend this remarkable industrial drill bit to anyone looking for a reliable and efficient drilling tool..