Amana 49522 Roundover Router Bit 1" Radius, 1/2 Shank Carbide Tipped Radius 1" Diameter 2-1/2 Cutting Length 1-1/4 Shank Diameter 1/2 Overall Length 3-3/16 2 Flute With Ball Bearing Guide Availability: Usually ships the next business day Amana 49522 Roundover Router Bit 1" Radius, 1/2 Shank amro1ra12sh4