The JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M85 x 1.5 is a precision tool designed to verify internal metric fine threads. It helps engineers, machinists, inspectors, and workshop professionals ensure threaded holes meet exact size and tolerance for reliable mating with fasteners.

Made from hardened steel with a knurled body for secure handling, this NoGo gauge is built to endure busy work environments and frequent use. The left-hand design supports specialty applications where left-handed threads are present, providing a practical solution for a range of machining and inspection tasks.

• Metric Fine thread verification: Precisely matches M85 x 1.5 with 6H tolerance for reliable hole checks, helping you quickly confirm acceptance or rejection of parts.
• Durable hardened steel construction: Resists wear and deformation, delivering long tool life in demanding environments and reducing replacement costs.
• Left-hand design with secure grip: Tailored for applications with left-handed threads; knurled surface ensures a secure hold even when wearing gloves.

This gauge enables faster, more confident inspections, reduces downtime by catching incorrect hole sizes before assembly, and supports consistent thread quality across parts. With its durable construction and precise metric fine sizing, you can rely on accurate checks day after day, helping you maintain quality standards and minimize rework.