"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 stock removal on carbon and stainless steel. Versatile tools: perfect for fine detail work, widely used for metalworking, woodworking, pattern 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 es t generally about 6000-50000 rpm; Various shapes: including cylinder shape, ball shape, oval shape, pointed end of tree shape, tree shape pointed end, flame shape, Investde cone, cone shape, pointed ray. makes it suitable for most DIY jobs, such as fine detailing, cutting, engraving, carving, retouching and finishing. Feature: 1) Universal Shank: The 1/8 straight universal shank can be held by any rotary tool with three-jaw chuck for precise centering. A good choice of DIY carving, engraving and polishing; 2) Double Cut Rotary Cutter Set: Designed in double cut style, the front end with blade teeth in two directions intersecting for stronger application. Deep into the complex part, it can process a variety of high-precision mold cavities; Product Specification: Material: Tungsten Carbide Surface: Titanium Coated Cutter Diameter: 1/4 inch (6mm) Shank Diameter: 1/8 inch (3mm) Made of durable heat-treated double-cut carbide that lasts a long time. Packed 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"