The JBO Thread Plug Gauge is a precision Go/No-Go tool designed to verify metric fine threads in internal holes. Specifically sized for M25 x 2 right-hand threads in the 6G tolerance class, it helps engineers, machinists, and technicians quickly confirm that threaded holes will accept fasteners and mating parts with the correct fit.

Built for everyday use, the gauge features hardened steel construction for long-lasting durability and repeatable results even after repeated checks. Its compact, knurled body provides a secure grip in tight spaces and smooth operation during inspection.

• Go/No-Go quick checks: Fast, pass/fail verification of hole threads in seconds, reducing guesswork and speeding up setup and quality checks.
• Hardened steel construction: Resists wear in busy workshop environments, preserving accuracy and extending tool life for reliable performance over time.
• Metric fine threading, M25 x 2, right-hand (6G): Precisely matched to common metric fine threads, ensuring reliable compatibility with standard components and consistent results across inspections.

This gauge helps streamline your workflow by delivering clear, repeatable results that minimize rework and downtime. With its durable build and precise sizing, you can trust it for consistent threading verification and confident part mating in production, maintenance, or repair tasks.