Correctly marked cutting and grinding tools are also important for you as a specialist dealer or importer. In customer service, the clear symbols help to clearly describe the field of application of a grinding wheel. oSa-labeled products meet the labeling requirements of EN standards. As the three basic European safety standards for grinding tools are usually reviewed every five years, innovations and new product development by our members might be excluded from these standard revisions. oSa takes this into account by allowing products that are not covered by the standards to be labeled with the oSa® brand under certain conditions (non-standard products). These abrasive tools are not EN marked, but also have a high and verifiable level of safety.