The designation combines two separate parts of the ISO 2768 standard:
Provides a baseline for quality inspection across different suppliers and manufacturing facilities. General Tolerance - ISO 2768 1 & 2 - ZEISS Quality Forum general tolerance iso 2768-mk
ISO 2768-mk provides a cost-effective, industry-standard default tolerance for machined parts where precision is not critical. It balances manufacturing ease with acceptable quality. However, engineers must explicitly specify tighter tolerances for mating, safety, or high-precision features. This report shall be appended to the company’s quality management system (QMS) as the reference for general tolerance compliance. The designation combines two separate parts of the