The JBO Thread Plug Gauge (GO) provides a straightforward way to verify the accuracy of internal M45 x 2 metric fine threads. Machinists, quality control teams, and maintenance technicians use it to confirm that threaded holes meet the required 4H tolerance before parts move to assembly, helping catch fit issues early in the production process.

• Hardened steel construction: Resists wear during repeated use, maintaining reliable measurements over time in busy workshops and production lines.
• Clear pass/fail indication: The GO design allows quick confirmation that a thread meets specifications without complicated setups or additional equipment.
• Right-hand thread compatibility: Matches standard right-hand metric fine threads, supporting consistent inspection across common industrial applications.

By delivering consistent verification of thread quality, this gauge helps reduce rework, prevents assembly problems, and supports tighter quality control without slowing down inspection workflows.