The JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 4H - M42 x 2 is a precision inspection tool designed to verify threaded holes meet exact size and pitch specifications. Built for engineers, machinists, quality teams, and workshop technicians, this GO gauge enables quick go/no-go checks to confirm proper thread engagement and help ensure reliable mating parts in assemblies.

Crafted from hardened steel and finished for durability, the gauge resists wear in demanding environments, delivering consistent accuracy over many uses and a long service life.

• GO gauge for Metric Fine M42 x 2 threads: A fast, go/no-go check that confirms holes are within tolerance, reducing guesswork and speeding up quality inspections.
• Hardened steel construction: Built to withstand daily handling, resist wear, and maintain sharp, accurate measurements over time.
• Right-hand 4H tolerance design: Aligns with standard threading practices to deliver repeatable, reliable results across production runs.

Using the JBO Thread Plug Gauge streamlines quality control by delivering quick, confident validation of hole threads, minimizing rework and downtime while improving assembly reliability and overall workflow efficiency. Its durable construction and precise GO gauge design help teams achieve consistent results in high-demand manufacturing, assembly, and maintenance environments.