The JBO Thread Plug Gauge is a metric coarse, go/no-go inspection tool designed to verify internal threads. Sized for M1.6 x 0.35 coarse threads with a right-hand orientation, it’s ideal for machine shops, maintenance teams, and DIY enthusiasts who need fast, reliable hole checks without guesswork.

Built from hardened steel with a knurled grip for secure handling, the gauge withstands daily shop-floor use and delivers consistent go/no-go results. The compact design and two ends enable quick checks on threaded holes, helping you keep production moving.

• Go/No-Go speed and clarity: Two ends provide a clear pass/fail indication, enabling rapid verification of hole tolerance and reducing inspection time and ambiguity in the assembly process.
• Rugged, durable construction: Hardened steel resists wear and maintains calibration over many cycles, lowering replacement costs and downtime.
• Precise metric coarse-thread compatibility (M1.6 x 0.35, 6G, right-hand): Calibrated for standard metric coarse threads in the 6G class with right-hand threading, ensuring reliable checks for common parts and consistent quality across assemblies.

With the JBO Thread Plug Gauge, you’ll streamline quality checks, reduce scrap and rework, and keep assemblies moving quickly. Its durable construction preserves calibration over time, while the go/no-go design delivers clear pass/fail signals, helping operators make quick, confident decisions on the shop floor or in the field. This gauge is a practical, long-lasting addition to any inspection kit, delivering consistent results you can trust.