The JBO Thread Plug Gauge (NoGo) — Metric Fine, Right Hand, 4H, M58 x 1.5 — is a precision inspection tool designed to verify threaded holes with metric fine pitches. It’s a fit for machinists, quality inspectors, and assembly professionals who need quick, reliable go/no-go checks to confirm hole size and thread fit meets specification.

Manufactured from hardened steel for durability, this plug gauge withstands daily use in demanding workshop environments and maintains calibration over time. The knurled body provides a secure, non-slip grip for fast setup, even when wearing gloves, while the identification features help keep quick inspection workflows moving.

• Metric-fine thread compatibility: specifically engineered for metric fine threads, this NoGo plug gauge enables fast, accurate checks of M58 x 1.5 holes with right-hand threads and 4H tolerance, delivering clear pass/fail results.
• Durable hardened steel construction: built to resist wear from repeated insertions, it stays calibrated and reliable through years of daily use in busy environments.
• Ergonomic, knurled design: the textured grip and thoughtful collar design provide secure handling and quick, confident measurements, reducing setup time.

In practice, this gauge helps you maintain consistent quality across parts, speeds up inspections, and minimizes rework by delivering trustworthy results that you can depend on in production and QA workflows.