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Trapezoidal Gauge dimensions are as per DIN 103-9 Recommended Tolerance classes are 7H/7e for medium tolerance quality and 8H/8c for coarse tolerance quality. Check the PDF
The Baker Trapezoidal Thread Gauge is a precision inspection tool designed for verifying trapezoidal thread profiles. Manufactured to meet stringent international standards, these gauges ensure consistent quality control for threaded components requiring medium or coarse tolerance grades.