Used for carving decorative doors and sign manufacturing. Up-cut design leaves an excellent finish and expels chips quickly, #46369, direction Up-cut, (D) diameter 1/8, (r) radius 1/16, (b) Cutting height 1/2, (D) shank 1/4, overall length (L) 2, flutes 2, 46369 Solid Carbide Up-cut ball nose spiral 1/8 dia x 1/2 inch x 1/4 shank router bit