VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 3B - 1/4 x 20 Face Mill Arbors - Anti-Vibration it’s well-suited to mold and

it’s well-suited to mold and die machining

The Go/NoGo design provides a clear pass/fail signal

improving fit and finish for assemblies that require precise hole dimensions

while the left-hand spiral flute and right-hand cutting promote efficient chip evacuation and stable cutting for clean bore finishes

streamlining workflows and delivering consistent part quality across projects

VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 3B - 1/4 x 20 Face Mill Arbors - Anti-Vibration it’s well-suited to mold andPrecision VCOIL Plug Gauge for UNC 1 4 x 20 internal threads, designed for quality focused shops that install Helicoil inserts. It combines Go No Go testing with ANSI ASME thread standards to ensure threads meet exact specifications. Thread system and size: UNC (STI) 1 4 x 20, Right Hand, 3B tolerance class, tailored for Helicoil insert applications. Go No Go design: A single gauge that includes both go and no go ends; the go end should screw into the