The JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M14 x 1 is a precision internal-thread gauge designed for metric fine threads. It helps engineers, machinists, quality teams, and assembly professionals quickly verify threaded holes to ensure precise mating with the correct fasteners.

Go/No-Go inspection design lets you confirm hole tolerance in moments — the Go end should thread in smoothly, while the No-Go end should not fit when the hole is out of spec, minimizing guesswork and rework in QA and production.

• Go/No-Go inspection design: Quickly verify hole tolerance with a simple go/no-go check, reducing guesswork and rework in QA and assembly.
• Metric fine thread compatibility: Specifically calibrated for M14 x 1 right-hand threads with 4H tolerance, ensuring accurate hole verification for common components.
• Hardened steel construction: Delivers long service life with excellent wear resistance in demanding workshop environments.

With this gauge, you can verify thread readiness fast, ensuring proper fit, reducing downtime, and delivering consistent results across parts and assemblies. The hardened steel body stands up to daily use, keeping calibration reliable so your teams can rely on precise measurements every time.