VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 3B - 2 x 8

The VCOIL NoGo plug gauge is a precision tool designed to verify UN (STI) threaded holes and Helicoil inserts. With a right-hand configuration and 3B thread class, this gauge combines Go and No-Go checks to ensure threads meet ANSI/ASME standards with reliable, repeatable results.

• Combined Go/No-Go design: a single tool houses both the Go end (threads in by hand) and the No-Go end (scrap limit) for efficient inspection.
• UN (STI) thread system: compliant with ANSI/ASME threading standards for consistent measurements across parts and inserts.
• Right-Hand orientation: optimized for common right-hand thread applications in Helicoil and threaded components.
• 3B thread class: specifies the internal thread tolerance used during gauging and acceptance.
• Red scrap indicator: the scrap side is marked with a red ring for quick visual identification of the No-Go limit.
• Go/No-Go performance criteria: go end must screw into the thread by hand without excessive force; no-go end must not be turned more than two full revolutions.
• 20°C reference temperature: measurement reference temperature ensures consistency in dimensional checks.
• Knurled body for grip: textured handle provides secure handling and precise manipulation during use.

Using the VCOIL NoGo gauge helps maintain thread quality by immediately signaling out-of-spec conditions, reducing scrap and rework. The tool’s ANSI/ASME alignment, clear scrap marking, and user-friendly design support fast, reliable inspections in manufacturing and maintenance environments while delivering consistent results across Helicoil inserts and UN (STI) threaded parts.