VCOIL Plug Gauge (D/E) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M16 x 2

The VCOIL Plug Gauge is a precision metric thread gauge designed for Helicoil insert applications, delivering reliable go/no-go testing in a compact, right-hand tool built to ANSI/ASME standards.

• Go/No-Go thread limit design: Combines a go plug gauge and a no-go plug gauge for rapid pass/fail checks in one instrument.
• Metric (STI) specification: Conforms to ANSI/ASME metric thread standards used for Helicoil inserts.
• Red scrap-ring indication: Scrap side is clearly marked with a red ring for immediate defect identification.
• Right-Hand orientation: Optimized for right-hand thread verification.
• 4H tolerance class: Specifies the 4H tolerance for consistent threading checks.
• Thread size: M16 x 2 metric size to match common Helicoil insert threads.
• Durable construction with knurled grip: Sturdy metal body and a knurled surface for secure handling in busy workshops.
• ANSI/ASME compliant: Manufactured and assessed to the relevant standards for thread gauges.
• Temperature reference: Measurements standardized at 20°C to ensure consistency across parts and gauges.
• Go/No-Go criteria: Go end must thread into the part by hand (without excessive force); scrap end must not thread in more than two turns under normal use.

With the VCOIL Plug Gauge, quality teams can quickly verify Helicoil inserts meet M16 x 2, 4H specifications, reducing guesswork and rework. The integrated go/no-go design speeds inspections, helping maintain consistent thread engagement across assemblies. The red scrap-ring provides an immediate visual cue for non-conforming threads, while the 20°C reference ensures measurements stay consistent in typical workshop environments. Built with a knurled grip for secure handling, this gauge withstands frequent use in machining, assembly, and inspection workflows.