The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It confirms the accuracy of internal LH threads with a dependable go/no-go design, specifically tailored for M22 x 2.5 holes. This makes fast, confident checks possible during assembly, maintenance, and quality control.

Crafted from hardened steel, this gauge is built to withstand daily workshop use and maintain calibration through repeated inspections. Its robust construction delivers long-lasting performance in demanding environments, helping teams verify thread readiness quickly and reliably.

• Go/No-Go Quick-Check: Delivers fast, decisive pass/fail results on internal threads, reducing inspection time and eliminating guesswork during setup or rework.
• Hardened Steel Durability: Designed for heavy use, it resists wear and corrosion, preserving accuracy and extending the tool’s usable life in busy workshops.
• LH Metric Coarse Thread Match (M22 x 2.5, 6H): Precisely tuned for left-hand metric coarse holes with 6H tolerance, ensuring consistent, reliable checks across batches and components.

Using this gauge helps streamline quality checks, shorten setup times, and improve overall thread reliability. The clear go/no-go signals support more consistent results across operators and shifts, reducing downtime and rework while boosting confidence in assembled products.