Sandvik Coromant R166.0G-16NJ01-240 Carbide Thread Inserts

Sandvik Coromant R166.0G-16NJ01-240 is a 1020-grade carbide insert designed for external thread turning, built on Sandvik's T-Max U-Lock platform to provide a stable insert-to-holder interface during precision threading work. The part number identifies this exact variant within the R166 family of thread inserts, intended for external threading operations on metal workpieces when mounted in compatible U-Lock holders, with the geometry suited for producing standard external thread profiles in a turning operation. The 1020 substrate denotes a wear-resistant carbide grade commonly used for general-purpose threading on steel and similar alloys, while the 16NJ01-240 suffix indicates the specific geometry and size within Sandvik's threading catalog, ensuring consistent interchange with other R166 inserts. This insert is used in turning centers and CNC lathes to form external threads, and when paired with the correct feed, speed, and depth of cut per Sandvik recommendations, supports repeatable thread starts and clean finishes across production runs.