ITEM NAME:10pcs 1/1.5/2.0/2.5/ 3.175mm Carbide Ball Nose End Mill CNC Engraving Router bit Description Specification: Brand new Material: Solide Car.10 x 2 Flutes End Mill. Sharp cutting reasonable matched with high strength of cutter. Chatter resistant design for superior surface finishes. Arc relief angle makes tool better wear-resistance. High strength and hardness.