The prerequisites for the use of the PGM seal are:
- The compliance with the defined tolerances, monitored by independent testing institutes (see Check of standard drill bits).
- The proof of the quality potential of the manufacturers by yearly audits or a certification according to ISO 9001 by selected accredited certification bodies and
- The compliance with social and environmental standards.
Drill bits with multicutter heads with complex geometries need a special approval and monitoring, based on comparison tests with metal anchors in concrete, see Check of hammer drill bits with multicutters.