SpeTool 12411 4 Flutes Carbide CNC Square Nose End Mill, 1/4 inch Shank Diameter, 3 inch Long, Upcut CNC Router Bit with Coated: Amazon.com: Tools & Home Improvement
Yonico 3-Flute Downcut Spiral End Mill 1/4 in. Dia 1/4 in. Shank Solid Carbide CNC Router Bit 32311-SC - The Home Depot