The JBO Thread Plug Gauge (GO) — Metric Fine, Right Hand, 6H, M78 x 1 — is a precision inspection tool designed to quickly verify threaded holes in a wide range of components. It helps engineers, machinists, and quality teams confirm hole acceptance, enabling reliable assembly and efficient quality control across production environments.

Crafted from hardened steel for durability, this GO gauge resists wear in busy shops and production lines, delivering long‑lasting performance. The metric fine M78 x 1 thread and right‑hand orientation ensure compatibility with common parts, while the knurled body provides a secure grip for precise use, even when wearing gloves.

• Fast go/no-go hole verification: Quickly determines if a threaded hole accepts the gauge, enabling immediate pass/fail decisions and reducing inspection time.
• Rugged hardened steel construction: Built to endure daily use, offering wear resistance and stable accuracy over many inspections in demanding environments.
• Precise metric fine threading (M78 x 1, right-hand, 6H): Ensures consistent engagement with corresponding threads, delivering repeatable measurements across parts and batches.

Using the JBO Thread Plug Gauge (GO) helps you tighten quality control, speed up inspections, and protect against defective parts entering assembly. It provides clear, repeatable checks for hole size and tolerance, supports standard‑compliant manufacturing, and reduces downtime and scrap by catching mismatches early. With durable construction and precise threading, you gain confidence that your threaded holes will assemble predictably, improving overall workflow and reliability.