The JBO Thread Ring Gauge (GO) for Metric Coarse threads is a precision tool designed for quick, reliable go/no-go checks of external M4 x 0.7 threads. Built for engineers, machinists, quality inspectors, and workshop professionals, this right-hand gauge ensures your coarse-thread parts meet exact diameter specifications with every inspection.

• GO Gauge: Metric Coarse, Right-Hand, 6h: Enables fast, go/no-go verification of external threads to the M4 x 0.7 standard, reducing guesswork and rework in quality control and assembly processes.
• Hardened Steel Construction: Delivers exceptional durability and wear resistance for high-volume inspection environments, helping maintain accurate measurements through long service life.
• Knurled Outer Edge for Secure Handling: The textured outer surface provides a confident grip and easy manipulation in tight spaces or while wearing gloves, speeding up setup and inspections.

Designed for reliability and consistency, this gauge supports faster inspections, fewer misfits, and more consistent results across batches. Its precise dimensions and durable build let teams rely on accurate thread verification in manufacturing, maintenance, and QC workflows, giving you dependable performance from first use to long-term use.