The JBO Thread Plug Gauge (NoGo) in Metric Fine is a precision inspection tool designed for metric fine threads. It’s ideal for machinists, quality inspectors, and shop teams who need fast, reliable verification of threaded holes. With a right-hand 6G thread and an M52 x 2 specification, this gauge delivers clear, repeatable pass/fail results to confirm components meet exact size and tolerance requirements.

Manufactured from hardened steel, the gauge is built to withstand daily use in busy workshops. Its wear-resistant construction helps maintain accuracy over time, reducing the need for frequent replacement. The NoGo designation provides a straightforward, quick verification workflow: a hole either passes the Go/NoGo check or it doesn’t, enabling faster inspection and fewer delays in production and assembly.

• Exact Metric Fine sizing (M52 x 2, 6G, Right-Hand): Precisely matched to the M52 x 2 metric fine thread standard, with a 6G class and right-hand orientation for consistent, repeatable measurements.
• Hardened steel, wear-resistant construction: Durable core material designed to endure regular handling and calibration, preserving accuracy in demanding environments.
• NoGo quick verification for fast inspections: Clear pass/fail indication that speeds up quality checks, helping maintain throughput and reduce rework.

This gauge helps you streamline threaded-hole inspections, improve measurement consistency across parts, and sustain reliable performance in production settings. Its robust build, precise sizing, and easy-to-use NoGo verification support efficient workflows from setup to final inspection, giving you confidence in every measurement.