VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 2B - 3/8 x 16

VCOIL Plug Gauge (D/E) for UNC (STI) right-hand threads provides a precise, compact solution for verifying internal thread quality to ANSI/ASME standards. This go/no-go instrument combines acceptance and scrap checks in one tool for efficient inspection.

• Go/No-Go thread gauge: A combined go and no-go plug gauge designed to verify thread dimensions in a single instrument.
• ANSI/ASME compliance: Manufactured and assessed according to the American National Standards Institute / ASME thread system.
• Red scrap-ring marking: Scrap side is clearly marked with a red ring for fast identification during inspection.
• Two-ended design: One end checks the go thread (hand-assembly without excessive force) and the opposite end checks the no-go limit.
• No-Go limit: The scrap end must not be screwable more than two turns into the cut thread under normal hand pressure.
• Right-Hand UNC (STI) compatibility: Specifically tuned for 3/8 x 16 UNC, D/E, 2B class within the Helicoil gauge family.
• Size and tolerance: 3/8 x 16 UNC, 2B tolerance class (D/E) for STI Helicoil applications.
• Rugged knurled body: Durable, textured grip for secure handling in workshop environments with threaded ends for reliable use.
• 20°C reference temperature: Parts and gauges specified with a 20°C reference to ensure consistent measurements.

This gauge supports machinists and quality inspectors in confirming thread integrity, minimizing scrap, and ensuring parts meet exacting standards. The go end threads in by hand with appropriate resistance, while the no-go end prevents over-insertion, helping maintain consistent fit and function across assemblies.