Asimeto Plug Thread Gauge (D/E) - Metric - Right Hand - 6H - M8 x 0.5The Asimeto 682 Series plug gauge is a precision tool designed to verify internal metric threads with confidence. Specifically sized for right hand M8 x 0. 5 threads and manufactured to 6H tolerance, it delivers reliable pitch diameter checks for fastener assemblies. Series and purpose: 682 Series plug gauge for measuring internal metric threads and ensuring accurate pitch diameter Thread size: Right hand M8 x 0. 5 thread specification for precise