The JBO Thread Plug Gauge (NoGo) – Metric Fine is a precision inspection tool designed to verify internal metric threads with exacting accuracy. This right-hand, 6H gauge is sized M45 x 3, making it ideal for manufacturing, quality control, and maintenance environments where precise hole tolerances matter. Use it to confirm threaded holes meet the specified size and tolerance, reducing rework and ensuring consistent assemblies.

• Metric fine, M45 x 3 with 6H tolerance: Enables precise go/no-go verification of internal threads to the exact size and tolerance required, helping prevent undersized or oversized holes from passing inspection.
• Hardened steel construction: Delivers excellent wear resistance and long service life, maintaining measurement reliability even after heavy use on busy shop floors.
• Right-hand orientation for quick, intuitive use: Aligns with standard metric threading practices, speeding up setup and improving operator confidence during inspections.

Designed to support efficient inspection workflows, the JBO Metric Fine NoGo Thread Plug Gauge helps you consistently verify hole quality, reduce downtime, and maintain high standards across batches. Its durable construction and precise dimensions provide dependable performance in challenging environments, making it a trusted choice for machinists, inspectors, and maintenance technicians alike.