VCOIL Plug Gauge (D/E) - BSW (STI) - Heli Coil Gauge - Right Hand - Medium - 1/4 x 20

The VCOIL Plug Gauge (D/E) in BSW (STI) configuration is a right-hand, medium-sized Helicoil thread gauge designed to ANSI/ASME standards for 1/4 x 20 threads. It combines go and no-go checks in one schematic tool, enabling fast, reliable verification of threaded parts.

• Go/No-Go design: A thread limit plug gauge that includes both go and no-go ends to confirm tolerance conformance in a single instrument.
• Red scrap ring: The scrap side is clearly marked with a red ring for quick identification and proper orientation.
• Hand-screwable go end: The go end must screw into the test thread by hand without excessive force, indicating the thread meets the required standard.
• No-Go end limit: The no-go end must not be manually turned more than two turns into the cut thread, signaling a failed tolerance if exceeded.
• Right-Hand configuration: Specifically oriented as right-hand for compatibility with common machining practices.
• Size and designation: 1/4 x 20 thread with D/E and BSW (STI) designation corresponding to the specified configuration.
• ANSI/ASME compliance: Manufactured and assessed in accordance with relevant ANSI/ASME thread standards for consistent quality.
• Temperature reference: Includes a reference temperature of 20°C for stable, repeatable measurements.

Using this integrated go/no-go plug gauge helps quality teams quickly confirm thread suitability, reduces the risk of under- or over-tolerance parts, and standardizes inspection across production runs. The clear scrap marking, precise hand-screwable go end, and strict no-go limit support repeatable measurements in workshops or on the factory floor, with a 20°C reference ensuring consistent readings across environments.