The JBO Thread Plug Gauge is a precision inspection tool designed to verify metric fine thread holes with a quick, reliable Go/No-Go check. Suitable for engineers, machinists, quality teams, and even hobbyists, it ensures your M26 x 1 holes meet the 6H tolerance and fit mating parts accurately.

Built from hardened steel for lasting durability, this gauge stands up to daily shop use and resists wear that can affect measurements over time. The knurled, textured body provides a secure grip for easy insertion and testing in tight spots.

• Go/No-Go quick validation: Delivers an instant pass/fail assessment for M26 x 1 holes, speeding up inspections and preventing undersized or oversized threads from moving forward in assembly.
• Durable hardened steel construction: Designed for long service life and reliable performance, with a rugged finish and a secure grip that supports repeated testing without deformation or loss of accuracy.
• Metric fine-thread compatibility (M26 x 1, 6H, Right-Hand): Specifically matched to the metric fine-thread standard, giving you confidence that checks align with your fasteners and assemblies for consistent results.

Using this gauge streamlines quality control, reduces downtime, and improves consistency across parts and batches. The combination of rapid go/no-go testing and precise threading helps minimize rework, accelerate setup, and deliver dependable results in production, maintenance, and repair tasks.