The JBO Thread Plug Gauge (GO) – Metric Fine – Left Hand – 6H – M58 x 1.5 is a precision go gauge designed to verify threaded holes against exact metric fine-thread standards. It’s ideal for engineers, inspectors, machinists, and quality control teams who need fast, reliable pass/fail checks to confirm hole acceptance without guesswork. Built for accuracy and consistency, this gauge helps ensure components meet specification on every part.

• Precise metric Go gauge for M58 x 1.5 Left-Hand (6H): Quickly verify hole size against the exact 6H tolerance to ensure compliant threaded assemblies and reduce rework.
• Hardened steel construction for long life: Designed to withstand heavy use in busy workshops, resisting wear so measurements stay accurate over time.
• Ergonomic knurled body for secure grip: Easy to handle, even with gloves, enabling quick alignment and repeatable checks in tight spaces.

Using this GO gauge helps you speed up inspections, confirm that threaded holes meet the M58 x 1.5 left-hand 6H specification, and maintain consistent quality across parts. It supports faster setup, fewer rejects, and reliable results in manufacturing, maintenance, and repair workflows.