This bit creates industry standard chair rail molding upper profile #300. Adds a beautiful horizontal detail to any room in the home or office.Use with Freud's lower profile 99-478 to complete the job. Router bit dimensions are 2-1/4 inch diameter, 1-1/2 inch carbide height, 1/2 shank, 3 inch overall length Features Freud's TiCo¿ Hi-Density Carbide with Titanium for long life and a flawless finish Perma-shield coating reduces friction and heat build-up, helps prevent the adhesion of resins, and protects the bit from corrosion Freud's Limited Lifetime Guarantee, Manufacturer: Freud