VCOIL Plug Gauge (D/E) - BSF (STI) - Heli Coil Gauge - Right Hand - Medium - 1/4 x 26

Designed for precision inspection of helicoil inserts, the VCOIL Plug Gauge (D/E) is a right-hand, medium-size gauge sized for 1/4 x 26 threads. It is manufactured to ANSI/ASME thread standards, ensuring consistent go/no-go checks in quality control and assembly workflows.

• End configuration: Go and No-Go ends provide a complete thread verification in a single instrument.
• Go end: The go end must screw into the threaded cut in a part by hand without excessive force.
• No-Go end: The no-go (scrap) end must not be able to be turned more than two complete turns in the cut thread.
• Scrap marking: The scrap side is clearly indicated with a red ring for quick identification.
• Thread standard & compatibility: Made to ANSI/ASME thread system specifications, with designation D/E and BSF (STI) helicoil context for right-hand threads.
• Size & grip: Right-hand orientation, Medium size, and a knurled body for secure handling during use.
• Size specification: 1/4 x 26 thread size for precise matching to common helicoil inserts.
• Reference temperature: Parts and gauges are referenced at 20°C to maintain consistent measurements across environments.

This plug gauge streamlines quality checks by delivering a clear pass/fail assessment for thread cuts and helicoil seating. Its durable construction, tactile grip, and visible scrap marking help technicians reduce rework, quickly identify nonconforming threads, and maintain consistent assembly tolerances across production and repair settings.