Birds Mouth Router Bits – Carbide Tipped – 3-Flute

Ultra-Shear Bird's Mouth Router Bits
Typical polygon miter joints
require meticulous angle adjustments and spline reinforcement. But bird's mouth joinery is different. Just machine one edge of each stave and fit the square edge of one stave into the "bird's mouth" of the next. The square shoulder of the bird's mouth locks in the mating board at exactly the right angle for the number of sides you've chosen. On the 12- and 16-sided assemblies, you can leave the shoulders as a feature or smooth them out with a sander, hand plane or lathe.
But, equal-side cylinders are just the beginning.
By making sections of different dimensions, you're no longer limited to just cylinders. You can make race-track ovals, elongated diamonds, squares with beveled corners and an unlimited number of other polygons. Start combining different wood species in the joining pieces and your creativity will really take off.
Ultra-Shear uses state-of-the-art CNC
grinding equipment, the highest quality carbide, ultra-fine grinding wheels and skilled Northeast Ohio machinists to produce American-made router bits at extremely competitive prices. The days of paying extra for middleman markups are over. Buy direct from the manufacturer and pocket the savings. We’re confident you won’t find American-made Bird's Mouth Bits of the same design for less, but this week you can save even more.