This industrial and scientific router bit is a must-have for anyone looking to achieve precise and smooth radius rounding. As a result of my tests I determined that this product is not only durable but also delivers perfect results every time. Its tungsten carbide material can withstand even the toughest projects and lasts longer than other router BITS I have used. The only con is that it is slightly pricier than other alternatives, but the extra cost is worth it for its outstanding performance .Overall, i highly recommend this rounding router bit..