Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16IR18UN2MBMA M&D this NoGo gauge is crafted

this NoGo gauge is crafted from hardened steel for exceptional wear resistance and long life

17 mm taper-shank reamer made from HSS (M2) for intermediate precision hole finishing

Taper shank with precise DIN 8051 B / ISO H5 tolerance: Ensures a secure

accurate hole finishing in engineering and manufacturing workflows where tight bore tolerance and smooth surface finishes matter

Left‑hand spiral flute for smooth finishing: delivers controlled material removal and a cleaner bore with reduced chatter

Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16IR18UN2MBMA M&D this NoGo gauge is craftedThe Carmex Thread Turning Internal Insert is a righthand, UN standard internal threading insert designed to machine UNC, UNF, UNEF, and UNS threads with a single versatile tool. Part of Carmexs globally recognized range, this triangular laydown insert delivers reliable performance across a wide spectrum of applicationsfrom simple threading tasks to the most demanding jobs. Broad UN thread compatibility: Machining internal threads to UNC, UNF, UNEF,