Asimeto Plug Thread Gauge (D/E) - Metric - Right Hand - 6H - M55 x 1The Asimeto 682 Series Plug Gauge (Metric, Right Hand, 6H, M55 x 1) is a precision tool designed for quick, reliable verification of internal threads in metric fasteners. Built for machinists, inspectors, and quality teams, it ensures accurate pitch diameter checks that conform to industry standards. Series: 682 Series plug gauge for precise internal thread verification Thread size: M55 x 1 metric with right hand threading Tolerance: Conforms to 6H