The JBO Thread Ring Gauge (NoGo) — Metric Fine, Right Hand, 6h, M20 x 2 — is a precision inspection tool designed for checking external threads. It helps engineers, machinists, quality teams, and maintenance professionals quickly verify that fasteners and fittings meet exact size requirements with reliable results.

Crafted from hardened steel, this NoGo gauge delivers durable, long-lasting performance in busy workshops. Its fine metric design and clear geometry are tailored for M20 x 2 threads, providing repeatable checks that support consistent quality control across multiple shifts and applications.

• Precise NoGo gauge for M20 x 2 threads: Quickly confirms that external threads stay within the maximum permissible size, helping you reject non-conforming parts and reduce rework.
• Durable hardened steel construction: Built to endure demanding environments, offering wear resistance and reliable performance over time.
• Easy-to-use, clearly marked design: Intuitive geometry and labeling enable fast, accurate pass/fail checks with minimal reading errors.

Using the JBO NoGo Ring Gauge streamlines your inspection workflow by delivering fast, consistent checks for threaded components. Its robust build reduces downtime, supports traceable quality control, and gives your team confidence that every part meets the required standard before it moves to assembly or shipment.