The JBO Thread Ring Gauge (GO) — Metric Fine, Right Hand, M52 x 4 is a go/no-go gauge designed for fast, accurate verification of external threads. Built for engineers, machinists, quality teams, and workshop technicians, it helps you quickly confirm that parts conform to the M52 x 4 thread size with confidence.

Crafted from hardened steel, this GO gauge delivers durability in busy production environments. The metric fine design ensures precise conformance checks, while its right-hand orientation aligns with standard thread practice for reliable inspections every time.

• Go/No-Go Verification: Delivers a clear pass/fail result for external M52 x 4 threads, enabling rapid inline inspections and reducing guesswork in QC.
• Rugged Hardened Steel Construction: Built to withstand daily shop use, resisting wear and maintaining accuracy for longer service life.
• Metric Fine Precision for M52 x 4: Engineered to precise metric fine standards, ensuring repeatable measurements and dependable conformance checks across batches.

With the JBO Thread Ring Gauge, you can streamline quality control, shorten inspection times, and minimize rework by catching nonconforming parts early. Its durable construction keeps measurements stable in challenging environments, while the GO function provides immediate, intuitive confirmation of thread conformance. This makes it a reliable, time-saving tool for production lines, maintenance teams, and precision-focused shops alike.