The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external thread diameters for metric fine threads. Specifically configured for left-hand applications, this gauge helps engineers, machinists, quality inspectors, and workshop professionals quickly determine whether a component meets the required M45 x 1.5 specification. Built as a reliable NoGo gauge, it supports consistent pass/fail decisions during quality checks.

• Precise NoGo verification for M45 x 1.5 metric fine threads: Enables fast, reliable checks to confirm parts either conform or do not conform to the exact thread size, reducing guesswork and rework in the inspection process.
• Hardened steel construction for long service life: Designed to resist wear and stand up to busy shop floors and demanding environments, preserving accuracy over countless inspections.
• User-friendly left-hand thread compatibility: Specifically tailored for left-hand threads with an intuitive design that makes identifying non-conforming components quick and straightforward, minimizing downtime.

This gauge supports efficient quality control across manufacturing, maintenance, and repair workflows by delivering repeatable, reliable measurements. Its durable build and purpose-built geometry help you maintain consistent thread accuracy, accelerate inspections, and protect overall product quality in demanding applications.