VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 3B - No. 4 x 40 Milling Cutter Arbors while the carbide construction provides

while the carbide construction provides wear resistance under high cutting speeds

standard-length finishing tool designed to produce precise

Flutes: 2-flute configuration for strong rigidity and efficient chip evacuation

Carbide-tipped durability: K10 carbide tips offer exceptional wear resistance for longer tool life and fewer regrinds

repeatable hole sizes for critical assemblies

VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 3B - No. 4 x 40 Milling Cutter Arbors while the carbide construction providesThe VCOIL Plug Gauge is a precision Go No Go tool designed to verify UNC (STI) Helicoil thread inserts. Built for right hand threads with a 3B tolerance, this No. 4 x 40 gauge complies with ANSI ASME thread standards to support reliable quality control in manufacturing and maintenance environments. Thread system: UNC (STI), Right Hand Gauge type: Thread limit plug gauge (combines go plug gauge and no go plug gauge) Size designation: No. 4 x 40 End