Description Suitable for: electric trimmer, bakelite milling, engraving and milling machine, CNC engraving machine, CNC machining centers and other machining tools. Concentricity is very good, double-edged cutting design ,sharp edge, the bottom has no crumbs residual. Can be used on the following materials:Wood, Acrylic, MDF, PVC, 3D engraving and chamfer etc. Tungsten steel, excellent rigidity, not easy to bend the blade. The bladed product is not use for people under 18 years. Specification: Material: tungsten steel. Color: show as pictures. Size: 6x22mm. Note: There might be a bit color distortions due to different computer resolutions. There might be size errors due to different computer resolutions. Package include: 1 * woodworking milling cutter.