Amazon: 0.625 inches - End Mills / Milling Accessories ...
Niagara Cutter N86028 Carbide Square Nose End Mill, Inch, TiAlN Finish, Roughing and Finishing Cut, 30 Degree Helix, 3 Flutes, 3.5" Overall Length, 0.625" Cutting Diameter, 0.625" Shank Diameter 4.4 out of …