Asimeto Plug Thread Gauge (D/E) - Metric - Right Hand - 6H - M28 x 1.5The Asimeto 682 Series Plug Gauge is a precision tool designed to verify the pitch diameter of metric internal threads. Ideal for quality control labs, machine shops, and maintenance teams, it delivers fast, reliable checks for M28 x 1. 5 right hand threads. Series and size: 682 Series plug gauge for metric internal threads, specifically M28 x 1. 5 with right hand orientation. Tolerance class: Conforms to 6H tolerance for consistent, accurate pitch