JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M28 x 0.75 Boring Bar Blank dependable concentricity from first cut

dependable concentricity from first cut to last

and consistent performance that supports efficient production and quality finishes

and a fine corner radius supports faster setups

repeatable bore operations

and minimizes rework by maintaining tight tolerances

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M28 x 0.75 Boring Bar Blank dependable concentricity from first cutThe JBO Thread Ring Gauge (NoGo) in Metric Fine, Right Hand, 4h, M28 x 0. 75 is a precision inspection tool designed to verify external threads quickly and reliably. Its ideal for engineers, machinists, quality teams, and workshop technicians who need to confirm that threaded components meet exact diameter and pitch specifications with confidence. Built for right hand threaded parts, this NoGo gauge helps you spot non conforming diameters at a glance.