The JBO Thread Plug Gauge (GO) is a precision inspection tool designed to quickly verify threaded holes in machining, assembly, and quality-control workflows. Sized for M70 x 4 metric fine threads with a 6H tolerance and right-hand orientation, this GO gauge confirms holes meet the required fit and specification.

Crafted from hardened steel, it resists wear and retains accuracy through repeated use in busy workshops. The tool’s knurled, easy-to-grip body supports reliable seating and straightforward alignment during inspections, helping operators complete checks with confidence.

• Precise GO gauge for M70 x 4 metric fine threads (6H, right-hand): Provides an exact go/no-go reference for threaded holes, helping inspectors quickly determine if a hole meets the M70 x 4 6H spec and reducing guesswork during QC.
• Hardened steel construction for durability: Built to withstand daily use in busy workshops, resisting wear and maintaining accuracy over time to lower replacement costs.
• Ergonomic, knurled body for secure handling: The textured grip and intuitive orientation speed up setup and improve repeatable results, even during longer inspection sessions.

This plug gauge helps streamline threaded-hole inspection, delivering consistent results, reducing rework, and supporting reliable quality across production runs. With a robust build and clear Go references, it’s a dependable choice for engineering teams, machinists, and quality professionals seeking precision without downtime.