JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M40 x 1 Face Mill Arbors 77 mm and tuned to

77 mm and tuned to ISO H5 tolerance

precision HSS (M2) reaming tool designed for engineers who demand consistent hole size and a clean finish

this Go/No-Go gauge offers fast

This precision hand reamer delivers consistent hole size and surface quality for controlled material removal in metalworking applications

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M40 x 1 Face Mill Arbors 77 mm and tuned toThe JBO Thread Ring Gauge (NoGo) Metric Fine Right Hand 6g M40 x 1 is a precision inspection tool designed to verify external metric fine threads. Its ideal for engineers, machinists, quality inspectors, and maintenance teams who need fast, reliable checks of threaded components. With its NoGo design, it helps you verify whether a thread is within tolerance, preventing mismatches before assembly. Built for durability and long life, the gauge supports