R0.5-R5 Corner Rounding Chamfer End Mill 4-12mm Shank Carbide End Milling Cutter Radius Router Bit for CNC Machine (Size : Nano Blue Coated, Color : R0.5xD4x50L): Amazon.com: Industrial & Scientific
CMT 659.031.11 Insert Carbide Chamfer Bit with 1-7/64-Inch Diameter and 1/4-Inch Shank - Straight Router Bits - Amazon.com
Amazon.com: WJYXSH Tungsten Carbide End Mill CNC Cutter T Slot Inner Outer Front Back Chamfer Tool Twin 90 Degree Metal Steel Chamfering Router Bit : Industrial & Scientific