ITEM NAME:Solid Carbide 3mm Dia Spiral 2 Flutes Ball Nose End Mill CNC Engraving Bit Store category Sign Up Now ! You may also like 1PC Solid Car.Clean, tidy, no burr. 1 x Double Flutes Milling Cutter. Spiral chip design, chip smooth, reduce heat. shank must be fully inserted into the jacket, tighten firmly. 1 for the design of portable and desktop woodworking engraving.