The JBO Thread Ring Gauge GO – Metric Fine (Right Hand, 4h, M30 x 1) is a precision inspection tool designed to quickly and reliably verify external thread diameters. Ideal for quality control labs, manufacturing floors, and service shops, this GO gauge helps confirm that threaded components meet exact size and pitch specifications before assembly or installation.

Crafted from hardened steel, the GO gauge delivers durable, long-lasting performance in tough workshop environments. Its metric fine thread (M30 x 1) and right-hand design align with common industrial fasteners, providing consistent, repeatable measurements across many parts and applications.

• Metric Fine M30 x 1 GO size: Precisely matched to metric fine external threads, enabling quick, accurate pass/fail checks for fasteners, collars, and machined parts.
• Hardened steel construction: Resists wear and deformation through heavy daily use, preserving accuracy and reducing replacement costs over time.
• Easy-to-use, clear conformance: Simple insertion and immediate identification of compliant components, helping to speed up inspections and minimize downtime.

With its reliable accuracy, durable build, and straightforward operation, the JBO Thread Ring Gauge GO – Metric Fine helps you maintain tight tolerances, improve inspection efficiency, and ensure consistent results across your production or maintenance workflow.