Mr. Bur Essix Retainer Contouring and Polishing Kit plays a vital role in retainer cutting, trimming and polishing, helping dental technicians achieve a smooth, high-quality finish that meets both the clinical requirements and the patient’s expectations.Application: Pre-polishing of Precious Metals, Composites and Acrylics  Especially suited for Thermoforming Films Especially suited to roughen/matt Precious Metal surfaces Application without polishing paste Recommended Speed: 5.000 - 6.000 RPM Maximum Speed: 10.000 RPM