Description : 6mmx 22mm 90 Degree CNC Engraving V Groove 3D Bits Router Carving Knife Tool Made in Solid Carbide. High quality and Extra long life. Double-edged cutting design， excellent concentricity. Suitable for meterials: Acrylic， MDF， PVC， 3D engraving and chamfer， etc.. Package included : 1 x Router CNC Engraving V Groove Bit Details pictures :