The JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M45 x 1.5 is a precision inspection tool designed to quickly verify the size and thread form of internal metric holes. Suitable for engineers, machinists, quality teams, and maintenance staff, it provides a reliable go gauge for confirming that holes meet the exact M45 x 1.5 metric fine specification.

Crafted from hardened steel, this gauge resists wear in busy workshops and maintains accurate measurements across many uses. The left-hand orientation supports inspection of left-hand threaded holes, while the 6H tolerance class helps ensure compatibility with standard internal threads.

• Accurate metric Go gauge for M45 x 1.5: Provides quick, reliable checks of internal threads with a precise metric fine pitch, helping you verify hole size and thread form against the exact specification.
• Rugged hardened steel construction: Withstands daily shop use, resists wear, and delivers consistent measurements over a long service life.
• Left-hand thread compatibility: Specifically designed for left-hand threaded holes, ensuring correct inspection and reducing setup time in specialized assemblies.

This plug gauge helps streamline quality control by delivering straightforward pass/fail indications for thread form, reducing rework and preventing assembly issues. Its durable construction and targeted design support repeatable measurements across production runs, improving overall workflow, part conformity, and confidence in every threaded joint.