Asimeto Plug Thread Gauge (D/E) - Metric - Right Hand - 6H - M52 x 1The Asimeto Plug Thread Gauge (682 Series) is a precision metric internal thread gauge designed to verify M52 x 1 right hand threads to the 6H tolerance class. Built for machine shops, quality labs, and maintenance teams, it delivers quick, reliable checks of thread pitch diameter to ensure proper fit and function. Series: 682 Series plug gauges for metric internal threads Thread size: M52 x 1 nominal (right hand) Tolerance: Conforms to 6H class for