Specifications Radius1 5/32" Radius2 5/32" Large diameter 1-3/8" Carbide height 1/2" Shank diameter 1/4" Overall length 2-1/16" Availability: Usually ships the next business day Amana 54110 Ogee Fillet Router Bit 1-3/8 Diameter, 1/4 Shank am5ogfirobit