The JBO Thread Ring Gauge (NoGo) is a precision tool for inspecting external metric fine threads. Designed for right-hand M17 x 1.5 threads in 6h tolerance, it helps ensure every part meets exact fit and function.

Built from hardened steel for long-lasting durability, this gauge resists wear in busy workshop environments and provides reliable measurements over many cycles of use.

• Precise NoGo verification for metric fine threads: Quickly detects parts that exceed the M17 x 1.5, 6h right-hand tolerance, reducing rework and ensuring consistent thread quality across batches.
• Rugged hardened steel construction: Delivers exceptional durability and wear resistance, so the gauge remains reliable through heavy use in production and inspection environments.
• Ergonomic knurled edge for ease of use: The knurled outer edge provides a secure grip and smooth operation, even with gloves, speeding up inspections and reducing user fatigue.

Using the JBO NoGo Thread Ring Gauge streamlines your quality checks by delivering quick, repeatable assessments of external thread diameter and tolerance. It helps prevent misfits, reduces downtime from rejected parts, and supports consistent performance across production runs. With hardened steel construction, you gain a durable tool you can rely on for years of service in demanding environments, paired with clear pass/fail results that support confident, data-driven decisions in machining, assembly, and quality control workflows.