10pcs Single Cut 1/8in. Shank Tungsten Carbide Rotary Burr Fit Dremel Various shapes like sphere, cylinder, long nose, etc. 3mm about 1/8 shank, fits most rotary tools like dremel Single cut burrs make it more easier to do the woodworking job Produced by excellent quality material, come with PVC case 1/8'' shank tungsten carbide rotary burr, good for your wood carving, drilling and engraving