The JBO Thread Plug Gauge (GO) – Metric Fine is a precision inspection tool designed to verify internal threads in metric fine holes. Sized for M60 x 2 with right-hand 6G tolerance, it helps machinists, inspectors, and maintenance teams quickly confirm that a threaded hole will accept a mating part without over- or under-tapping.

Crafted from hardened steel for durability, the GO gauge resists wear and maintains accuracy through repeated use in busy production environments. Its simple design makes it easy to identify holes that are properly threaded, supporting consistent quality control and efficient assembly.

• Precise metric fine GO verification: Quickly confirm internal threads meet spec for M60 x 2, right-hand 6G, reducing guesswork and rework.
• Hardened steel construction for durability: Rugged, wear-resistant body stands up to daily use, delivering reliable accuracy over time.
• Easy alignment and repeatable checks: Smooth insertion into threaded holes enables fast, consistent Go/No-Go checks with minimal risk of cross-threading.

Using the JBO Thread Plug Gauge (GO) – Metric Fine helps you streamline quality control, catch undersized or mis-tapped holes early, and prevent assembly delays. By delivering quick, reliable pass/fail results, it supports tighter tolerances, better fitment across parts, and longer tool life in your production line.