Used for carving decorative doors and sign manufacturing. Up-cut design leaves an excellent finish and expels chips quickly, #46380-K, direction: Up-cut, (D) diameter: 1/2, (r) radius: 1/4, (b) Cutting height: 1-1/4, (D) shank: 1/2, overall length (L): 3, type: naco ceramic coating, flutes: 2, 46380-K Solid Carbide spektra extreme tool life Coated Up-cut ball nose spiral 1/2 dia x 1-1/4 inch x 1/2 shank router bit