Truthread Plug Thread Gauge (D/E) - UN - Right Hand - 2B - 1.3/8x6 Boring Bar Blank TiXCo4 coating for efficiency: Provides

TiXCo4 coating for efficiency: Provides high wear and heat resistance with low friction

Left‑hand spiral flute with right‑hand cutting: enables controlled material removal and stable cutting action for accurate hole sizes

it delivers durable performance in hard materials and maintains consistent size control for reliable results

minimizing runout and delivering consistent hole geometry

HSS-E (M35 Cob) for extended tool life: Cobalt-enriched steel provides enhanced wear resistance

Truthread Plug Thread Gauge (D/E) - UN - Right Hand - 2B - 1.3/8x6 Boring Bar Blank TiXCo4 coating for efficiency: ProvidesThe Truthread Plug Thread Gauge (D E) for UN threads is a precision instrument designed to measure the internal threads of threaded holes with accuracy and repeatable results. It covers the Unified National standards (UNC, UNF, UNEF), making it a versatile tool for engineers, machinists, quality inspectors, and technicians who need quick, trustworthy thread checks. The gauge is built to support right hand thread measurements and 2B tolerance,