making it a reliable choice for workshop projects
repeatable hole finishes in standard toolholding systems
providing long-lasting performance and maintained accuracy over time
and it runs with through coolant for efficient chip evacuation
it delivers controlled material removal and predictable results in metalworking
Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16VER16UNBMA Hex Key Drill Chuck making it a reliable choiceCarmex Thread Turning External Insert (model 16VER16UNBMA) is a durable carbide insert designed for external threading on a wide range of standards. Its laydown triangular geometry delivers clean, accurate threads with consistent results. Ideal for engineers, machinists, maintenance teams, and hobbyists, this insert handles UNC, UNF, UNEF, and UNS external threads in a single, versatile solution and is optimized for right hand threading. Universal