Review on Whiteside 6050 Router Bit - Enhanced Diameter for Improved SEO by Enrique Espinoza

This is a bit that converts to make the necessary cuts in the sash. I used to try a two piece set at a lower price, thinking they would be easier to use, but they weren't. Converting a bit is actually faster because you can leave the bit in the router to swap out and it's perfectly positioned for the second cut. The parts fit together perfectly without the use of shims to adjust the position of the bits when changing. Making a sash is easy now.