- Nordent burnishers are designed to condense, smooth, carve and polish amalgam. - These instruments are precision machined and hand formed from high carbon Stainless Steel. - The tips are then hardened and hand polished to achieve smooth, scratch resistant surfaces that produce accurate and smooth restorations every time. - Acorn #21B 2.2 mm / 2.8 mm diameters. **For further product information , please contact Chat Support**