Sealey Tungsten Carbide Rotary Burr Sets - Sealey SDBCK3, Rotary burrs manufactured from Tungsten Carbide with Cylindrical Front End Cut, Cylindrical Ball Nose, Arc Round Nose shaped heads. For use on aluminium, soft steels and reinforced plastics. Sealey SDBCK3 Tungsten Carbide Rotary Burr Set 3pc Ripper/Coarse