The lifetime of individual grinders and polishers is significantly determined by the initial roughness, the size and the hardness of the processed surface. Also the adherence to the recommended rotation speed and the applied contact pressure play a decisive role on durability. Due to the variety of influencing factors it is not possible to define an exact number of applications per item.
Generally polishers must be discarded before the working part of the polisher is completely worn out and the mandrel in the grinder and polisher can be seen. Damaged or deformed instruments must be discarded immediately.
Please follow the application and safety precautions in order to achieve the best possible durability. These are available in the download section.