Features:1.HighSpeed Steel Wood Carving Milling Cutter Set. Multiple shaped carbide burr cutter rasps make it easy to cut or notch many different sizes, or engrave any words or any types of designs.2.This 10pc burr set includes all of the most popular burrs shapes and sizes for engraving, notching, grinding, grooving, routing, and more.3.Carbide burr cutter is made of heattreated solid tungsten carbide that lasts long working life, packed with nice plastic case for safety storage and protection.4.These small, highquality milling cutters are durable, easy to carry, and easy to operate.5.All of the rotary tool burr bits in this kit are all single cut burr bits.Specifications:Shank: 3.17mmPackage Included:10 x Tungsten Carbide Single Cut Rotary Burr SET 1/8".