The JBO Plug Gauge - Metric Fine (STI) is a calibrated right-hand plug gauge designed to verify metric screw thread inserts (STIs). With M14 x 1.5 and 6H tolerance, it aligns with ANSI/ASME threading standards and carries DAkkS calibration for traceable, objective measurements in manufacturing, automotive, and aerospace applications.

• DAkkS-Calibrated with Traceability: This gauge comes with formal, national-standard calibration that provides a documented measurement trail, helping you meet quality-and-audit requirements with confidence.
• Metric STI-Ready (M14 x 1.5, Right-Hand, 6H): Specifically designed for metric inserts, it enables precise go/no-go checks to confirm inserts meet the M14 x 1.5 fine-thread specification and the 6H tolerance.
• Durable, User-Friendly Construction: Features a knurled body for secure grip and color-coded end collars for quick orientation, making inspections faster and less error-prone in busy shop environments.

Using the JBO Plug Gauge simplifies insert verification, reduces rework, and delivers repeatable results across teams. Its DAkkS-calibrated, ANSI/ASME-aligned design supports audits and supplier qualification, while the rugged construction withstands daily shop-floor use—keeping your measurement workflow reliable and efficient.