ISO-No 509 104 225190 023 ø 2.3 mm Recommended speed (rpm): plaster, 15 - 20,000 denture resin, 12 - 18,000 veneering material, 15 - 20,000 precious metall/pd-based, 15 - 20,000 CoCr denture/non-precious metal, 15 - 20,000 ceramic, 15 - 20,000 bredent tool with Diatit wear protection: Diatit. This is a special material which is added into the surface of the bur after it has been produced. It hardens the tool surface and reduces the surface friction. This comprehensive hardening process results in a tool which features very smooth rotation and precise cutting performance from the very beginning - and this is provided over a considerably extended period. Accordingly, accurate removal of material is ensured. Additionally, the service life of the tool (compared to uncoated bredent tungsten carbide burs) is increased considerably by the hardening process. 1 piece