The JBO Thread Plug Gauge (NoGo) in Metric Fine is a precision measuring tool designed to verify metric fine threaded holes with reliability. It’s ideal for engineers, buyers, tradespeople, hobbyists, and technicians who need quick, repeatable checks to confirm hole size and thread quality.

Built for durability, this gauge is made from hardened steel to resist wear and maintain accurate dimensions through heavy use. The NoGo design provides an immediate indication of out-of-tolerance holes, while its left-hand thread compatibility and M82 x 2 sizing ensure accurate checks for left-hand fine threads in demanding environments.

• Metric Fine Thread Compatibility: Specifically designed for metric fine threads, enabling precise NoGo checks for M82 x 2 holes and matching 6H tolerance requirements.
• Left-Hand Thread Design & NoGo Verification: Supports left-hand threaded holes; the NoGo feature delivers quick, reliable acceptance checks with minimal guesswork.
• Durable Hardened Steel Construction: Hardened steel resists wear and deformation, providing long-lasting accuracy; knurled grip enhances handling in challenging conditions.

Using the JBO Thread Plug Gauge (NoGo) streamlines inspection workflows by delivering fast, dependable assessments that help prevent rework and ensure parts meet specified standards. Its rugged construction delivers consistent performance across repeated checks, giving you confidence during quality control and production checks.