Truthread Thread Ring Gauge (NoGo) - UN - Right Hand - 2A - 1.1/2x20 Drive Ring The stub-length design adds rigidity

The stub-length design adds rigidity for tighter tolerances and better concentricity in deeper pockets or constrained spaces

The straight shank ensures stable clamping in standard holders

The MTB through-coolant design helps you maintain steady throughput by reducing heat buildup and ensuring consistent thread quality from first cut to last

wear-resistant core delivers long tool life and consistent hole quality across tough drilling tasks

Truthread Thread Ring Gauge (NoGo) - UN - Right Hand - 2A - 1.1/2x20 Drive Ring The stub-length design adds rigidityTruthread Thread Ring Gauge (NoGo) UN Right Hand 2A 1. 1 2x20 is a precision measuring tool designed specifically for UN threads. Its ideal for engineers, quality inspectors, machinists, buyers, and hobbyists who need fast, reliable checks to confirm threads stay within specification. The NOGO gauge checks the minimum material condition of the part, ensuring that it is within the lower limit of the allowable size. This makes it ideal for use in