VCOIL Plug Gauge (D/E) - BSW (STI) - Heli Coil Gauge - Right Hand - Medium - 1/8 x 40

The VCOIL Plug Gauge is a precision Go/No-Go tool designed for BSW (STI) threads used with Helicoil inserts. Built for right-hand applications, it comes in the D/E range with a 1/8 x 40 size, and is ideal for quick, reliable thread verification in quality control and assembly workflows.

• Go/No-Go Thread Gauge: A combined go and no-go plug gauge to verify thread acceptance; the go end should screw in by hand, while the no-go end must not turn more than two turns in the cut thread.
• Scrap-Side Marking: The scrap side is clearly identified with a red ring for fast visual inspection during setup and in busy work environments.
• Standards & Compliance: Manufactured and assessed to ANSI/ASME thread standards to ensure consistent, repeatable results.
• Handedness & Build: Right-handed gauge with a knurled metal body that provides a secure grip and precise control during use.
• Size & Range: 1/8 x 40 BSW (Whitworth) in the D/E range, specifically for STI BSW threads used with Helicoil inserts.
• Reference Temperature: Part and gauge measurements are specified at 20°C to maintain consistency across environments.

Using the VCOIL Plug Gauge helps ensure threads meet tolerance before Helicoil installation, reducing scrap and rework. The go/no-go feedback is immediate and tactile, supporting repeatable checks on the shop floor. Its durable construction and clear scrap marking make it a dependable addition to any precision threading workflow, delivering reliable verification when you need it most.