The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. It’s ideal for machinists, quality control technicians, and assembly teams that need quick, reliable checks to confirm threaded holes will accept mating components.

Built for M23 x 0.75 right-hand threads (6G), this gauge delivers consistent Go/No-Go results and is manufactured from hardened steel for long-lasting performance in demanding shop environments.

• Go/No-Go design for fast, reliable checks: Instantly determine if a hole meets the M23 x 0.75 right-hand thread specification, reducing inspection time and eliminating guesswork in assembly.
• Metric fine-thread accuracy (M23 x 0.75, 6G): Precisely calibrated to metric fine threads within the 6G tolerance, ensuring consistent fits across parts and batches.
• Hardened steel construction for durability: Withstand daily use in busy workshops, maintaining accuracy and extending tool life through repeated insertions and withdrawals.

With the JBO Thread Plug Gauge, you gain speed, confidence, and consistency in your threaded-hole inspections. The Go/No-Go checks streamline QA and assembly workflows, helping you reduce downtime and rework while preserving precise tolerances across production runs. The rugged, hardened-steel build ensures the gauge stays accurate over time, making it a dependable addition to any machining, manufacturing, or maintenance toolkit.