So I'll be tearing down a 4.0ohv completely, but currently dont have impact sockets only non impact that are pretty chewed. Dont want to buy what I dont need, so with it being manufactured in Germany will I run into all metric, or standard, possibly half and half?
Hope everyone is staying safe and positive out there.
Thanks in advance.

Should be all metric, some metric and sae are the same size, but why risk rounding bolt heads with worn out tools, good ones don't cost a fortune.