Precision engineering for metric thread inspection, the Asimeto NoGo Ring Thread Gauge (686 Series) is built for right-handed M55 x 1.5 applications. It serves machinists and quality teams by providing a clear pass/fail gauge on whether the thread pitch diameter stays within specified limits.

• Designation: NoGo—identifies if the thread is too large or out of tolerance.
• Thread specification: Metric M55 x 1.5, right-hand threads.
• Series: 686 Series, a line of precision ring gauges designed for consistent performance.
• Tolerance class: Designed to meet the 6g tolerance class for accurate pitch-diameter assessment.
• Measurement outcome: If a fastener cannot pass through the gauge, the pitch diameter exceeds the maximum acceptable limit.
• Material and construction: Crafted with high-quality materials to deliver durability and long-lasting performance in daily shop use.
• Purpose and use: Ideal for quality control, incoming inspections, and assembly validation in machining and manufacturing environments.
• Orientation: Right-hand configuration aligned with common metric thread standards.

In practice, this gauge helps you confirm proper thread fit quickly, reducing rework and minimizing the risk of assemblies failing due to oversized pitch diameters. Use it during incoming inspections, in-process checks, or final assembly to ensure M55 x 1.5 fasteners will thread smoothly and reliably, delivering consistent quality across parts and production runs.