The T3110 series is precision ground for outstanding accuracy and consistency
repeatable hole sizes and geometry that align with established standards for reliable manufacture
This is especially valuable for through holes where reliable alignment matters most
Powder metal body delivers enhanced toughness and wear resistance
it delivers added rigidity and minimizes deflection
Truthread Plug Thread Gauge (D/E) - UN - Right Hand - 2B - 11/16x20 Drill Head The T3110 series is precisionThe Truthread Plug Thread Gauge (UN) is a precision instrument for quickly verifying the internal threads inside holes. Sized for 11 16x20 right hand threads and built to the 2B class, it covers UNC, UNF, and UNEF standards, making it ideal for engineers, machinists, inspectors, and hobbyists who need fast, reliable thread checks. The tapered plug design and easy grip handle allow smooth insertion and removal, delivering consistent results with