Palbit Threaded Coupling Holder - For AN1607 Inserts - 32mm Cutter Diameter - 181082800Palbit Threaded Coupling Holder is a precision tool holder designed for AN1607 inserts, delivering secure clamp and rigid support for internal threading on CNC machines. Its built for engineers and machinists who demand repeatable thread forms, tight tolerances, and long tool life in demanding production environments. Part Number: 181082800 Compatibility: Designed specifically for AN1607 inserts to ensure reliable seating and consistent performance.