Our Outstanding MLCS Woodworking TripleWing™ Router Bits have an extra cutting blade (Three flute versus Two flute) that saves time by allowing more aggressive cuts, and therefore, fewer passes. These bits can be run at reduced speeds, helping to eliminate burning on problem woods, such as, cherry, oak, and others. Our TripleWing™ Router Bits produce 50% more cuts per inch, for a smoother, cleaner result. These bits stay sharp and last 50% longer than standard 2 flute router bits. These are a cut above the rest !!! A woodworkers dream !!!