These diamond coated countersink burrs are mounted on a 3mm straight shank. Ideal for beveling, countersinking, carving, shaping, counterboring, chamfering and for getting into acute angled areas of glass, stone, ceramic, composites and hard woods. Ideal for V-carving, the tip is for cutting into narrow spaces, and the bottom is for cutting larger areas. Create sharp corners and remove material with ease. It is used to create a smooth, professional-looking finish for drilled holes. Use with a rotary tool, flex shaft or pendant drill. Use with plenty of cold water, wearing protective face and eye wear. Do not exceed a drill speed of 12,000 RPM. Use with little pressure.

Helpful Note: If you are looking for a very fine point, you might like to try our Diamond Cone Burrs or Point Burs.