The JBO Thread Plug Gauge (GO) is a precision inspection tool designed to verify metric fine threaded holes. Specifically engineered for right-hand threads of M100 x 4 with a 6H tolerance, this GO gauge helps engineers, machinists, quality inspectors, and workshops quickly confirm hole readiness. Crafted from hardened steel, it combines accuracy with durability for daily shop use.

Designed for straightforward use, the GO gauge clearly indicates when a hole accepts the correct thread, supporting consistent QC decisions and reducing rework. Its compact, robust design stands up to demanding environments while preserving measurement integrity over many inspections.

• Exact metric fine threading (M100 x 4, 6H): Enables quick, reliable go checks to ensure holes meet the precise right-hand metric fine thread standard, reducing setup guesswork and rework.
• Hardened steel construction for long life: Wear-resistant material and precision machining resist deformation, maintaining accuracy in busy shops over many inspections.
• Ergonomic, easy-to-use GO design: Knurled, user-friendly form allows fast insertion and clear indication of accept/reject, boosting workflow speed and inspector confidence.

In practice, the JBO Thread Plug Gauge (GO) speeds threaded-hole verification, supports consistent results across production runs, and helps keep assemblies moving smoothly by confirming M100 x 4, 6H right-hand threads meet spec on the first pass.