High quality: 10 pieces titanium tungsten carbide cutter set, and the surface is titanium coated, ensuring its longevity and elegantly, can reach HRC70; Double cutter head design: The cross groove lines of the carbide rotary cutter make it more suitable for materials with relatively low density, such as wood, plastic and aluminum. It would be the best choice for fast material removal on carbon and stainless steel. Versatile tools: perfect for fine detail work, widely used for metalworking, woodworking, metalworking, model engineering, wood carving, jewelry making, welding, chamfering, casting, deburring, grinding, etc. Easy to use: can usually be used with a portable electric or pneumatic tool drive (can also be used in a machine tool, and the speed of electric / pneumatic tools is generally about 6000-50000 rpm; Various shapes: y including Cylinder Shape, Ball Shape, Oval Shape, Tree Shape Pointed End, Tree Shape Pointed End, Flame Shape, Investde Cone, Cone Shape , the sharp radius.makes it suitable for most DIY work, such as fine detailing, cutting, engraving, sc ulpture, touch-ups and finishing. Feature: 1) Universal Shank: Universal straight 1/8 shank can be held by any rotary tool with chuck with three jaws for precise centering. A good choice for DIY carving, engraving and polishing; 2) Double cut rotary cutter set: Designed in double cut style, the front end with blade teeth in two intersecting directions for stronger application. Deep into the complex workpiece, it can process a variety of high-precision mold cavities; Product specification: Material: tungsten carbide< /p> Surface: titanium coated Cutting diameter: 1/4 inch (6mm) Shank diameter: 1/8 inch (3mm) Made of durable heat-treated double-cut carbide that lasts a long time. Packaged with a nice plastic case for safe storage and protection Package: Set of 10 rotary cutters Note: There may be a little chromatic aberration between the images with the products