Truthread Plug Thread Gauge (D/E) - UN - Right Hand - 2B - 1.1/4x20 ISO Insert - SC Style accurate corners with the R1

accurate corners with the R1

while the flute geometry ensures quick chip clearance

it fits comfortably in professional spaces without compromising storage capacity or security

Material: High-Speed Steel (M35 grade) with precision-ground cutting edges for long-life performance

giving you dependable performance across demanding applications

Truthread Plug Thread Gauge (D/E) - UN - Right Hand - 2B - 1.1/4x20 ISO Insert - SC Style accurate corners with the R1The Truthread Plug Thread Gauge is a precision tool designed to verify the quality and compatibility of internal threads in threaded holes. It covers UNC, UNF, and UNEF standards, making it a versatile choice for machinists, quality inspectors, and maintenance teams. Its tapered plug design and built in handle support fast, repeatable checks, helping you confirm a clean, proper thread fit before assembly. Designed for right hand threads and sized for