[20pcs Carbide Spinning Burr Set]It comes with 20pcs Carbide Burr Set - 10 x head diameter 3mm, total length 38mm and 10 x head diameter 6mm, total length 43 to 50mm. Shank diameter is 1/8 inch (3mm) Wide variety, 20 different bit shapes will meet your different needs for engraving, drilling, engraving, polishing, cutting burrs and more.[Dual Cut Design]These carbide rotary drills have a cross head that cuts multiple rows of cutters in two intersecting directions to quickly remove material and achieve a rougher finish, producing a finer finish than single cuts with less The small chip size and long strips will be more suitable for wood, plastic, aluminum, mild steel and other materials.[High Quality Material]The rotary drill set is made of high quality tungsten carbide steel with hardness up to HRA90, which is sharp, strong, and has a long service life, which is 10 times more durable than high-speed steel knives. Suitable for wood, balsa, wax, slate, marble, steel, welds, stainless steel, brass, copper, bronze, aluminum and many other materials.[Wide Applications]1/8 inch holder is for and most small rotary tools with three-jaw chuck for precise centering. Compatible with , APEXFORGE, Beyond, , , FIXTEC, Foredom, , , Hammerhead etc. Dual cut burr bits would be a great addition to rotary tools, perfect for your DIY woodworking, carving, engraving, polishing, deburring and moreMaterial: Carbidecolour: silverPackage Contents:20 x Carbide Burr SetOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.