Mesee 4 Pieces Double Flute Straight Router Bit Set 1/4 Inch Shank Industrial Grade Tungsten Carbide Trimming Milling Cutter Woodworking Tools, Cutting Dia. 1/4", 5/16", 3/8", 1/2"
1/4", Cutting Diameter: 1/4", 5/16", 3/8", 1/2"; Cutting Depth: 13/16", 1", 1-3/16", 1-3/16"