PGM certification: what it tests and which Dehui series carry it

PGM stands for Prüfgemeinschaft Mauerbohrer e.V., the German testing association for masonry drill bits. Member manufacturers submit bits for independent testing of hole tolerance, tip geometry and drilling performance, and remain under continuous monitoring. The PGM mark on a bit tells an installer that holes drilled with it will match the anchor manufacturer's assumptions.

Expansion and chemical anchors are approved (e.g. under ETA assessments) on the assumption that the hole is drilled to a defined diameter tolerance. A cheap bit that drills 0.3 mm oversize can cut the holding value of an anchor significantly. Specifiers in Germany and increasingly in the Gulf and Singapore ask for PGM bits for that reason.

Three series: SDS Plus hammer drill bits (DH01); SDS Max hammer drill bits (DH02); Impact masonry drill bits, cylindrical shank (DH04). Every product page states whether the series is within scope. Our chisels, hole saws, hex shank bits and sets are made on the same lines but are not covered by the certificate.

Since 2009. Dehui was among the first privately owned Chinese drill bit factories to apply and pass on its own application.

The two certificate documents are shown on this page. High-resolution copies and the underlying test reports are provided to buyers on request under NDA — ask your sales contact.

Yes, for the certified series and according to PGM marking rules. We do not apply the mark to products outside the certificate scope.