Palbit Threaded Coupling Holder - For PO0403 Inserts - 42mm Cutter Diameter - 181130900Palbit Threaded Coupling Holder for PO0403 inserts delivers exceptional rigidity in compact threading setups, designed for CNC machinists tackling micro internal threading with tight tolerances. It ensures secure insert retention and a reliable, high precision cutting experience. Compatibility: Specifically designed for PO0403 inserts to ensure precise alignment and reliable performance. Product Code: 181130900 Cutter Diameter: 42 mm cutter diameter