This router bit is a game changer for ANYONE who works with crown molding. Industrial and Scientific quality is clearly evident in the precision of the cut. After I put it to the test on a few projects I'm thrilled with the results .the bit cuts smoothly and cleanly, leaving no jagged edges or splintered wood. The only downside is the price, but you definitely get what you pay for in terms of quality. Overall, a great investment for anyone who wants perfect-looking crown molding..