The JBO Thread Ring Gauge (NoGo) – Metric Fine is a precision inspection tool designed to verify external metric threads, specifically the M40 x 2 right-hand configuration. As a NoGo gauge, it helps you quickly identify parts that fail to meet threading tolerances, supporting reliable quality control and efficient assembly.

Built for engineers, machinists, inspectors, and technicians, this gauge delivers consistent results in a variety of production environments, from workshops to manufacturing floors.

• Go/No-Go verification for M40 x 2 external threads: Quickly confirm parts meet the required tolerance and reject undersized or oversized threads at the first check, reducing rework and confirming fit right the first time.
• Hardened steel construction for lasting durability: Resists wear and maintains dimensional accuracy through heavy use in demanding environments.
• Ergonomic, user-friendly design: Knurled outer edge for secure handling, clear orientation for right-hand threads, and easy alignment in fixtures to speed up inspections.

Using the JBO Thread Ring Gauge (NoGo) – Metric Fine helps streamline threading inspections, improve measurement reliability, and shorten the time needed to sort compliant versus non-compliant parts. With durable materials and a design focused on ease of use, it supports consistent quality across batches, reduces downtime, and provides confidence when delivering threaded components to customers or downstream processes.