The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external metric fine threads quickly and reliably. It’s ideal for machinists, quality inspectors, and maintenance teams who need fast, accurate pass/fail checks on threaded components without guesswork.

Specifically engineered for metric fine threads, this gauge targets the M58 x 1.5 size with right-hand threading and the 4h tolerance class. Crafted from hardened steel, it delivers exceptional durability and wear resistance to maintain accuracy through heavy daily use in demanding environments.

• Fast NoGo verification for rapid QC: Enables quick pass/fail checks by confirming whether the external thread diameter exceeds the maximum limit, reducing inspection time and downtime on the shop floor.
• Durable hardened steel construction: Built to withstand repeated engagements and cleanings, maintaining precision and extending gauge life in busy workshops and production lines.
• Specifically matched to M58 x 1.5 right-hand metric fine threads: Engineered for reliable measurements on common fasteners, ensuring consistent results and easy integration into standard quality checks without guesswork.

With the JBO Thread Ring Gauge NoGo in your QC toolkit, you’ll streamline inspections, minimize rework, and achieve repeatable, trusted results across batches. Its robust build and precise sizing help you maintain tight quality control, improve workflow efficiency, and protect overall product performance.