API Standard Carbide Threading Inserts for Oil & Gas Pipe | External & Internal Threads

Our API Standard Carbide Threading Inserts are specifically developed for heavy-duty oil and gas pipe threading operations. With precisely ground thread profiles and reinforced cutting edges, these inserts deliver stable cutting performance, consistent thread accuracy, and extended tool life in demanding machining environments.

The inserts are suitable for both external and internal API threads, supporting right-hand and left-hand thread directions, and are widely used in high-volume oilfield production and repair machining.

16ER/RL/IR/IL-8 API RD Threading Insert

The 16ER/EL/IR/IL-8 API RD carbide threading insert is designed for external API round threads with 8 TPI. It is commonly used for oil casing and tubing threading where stable cutting      and accurate thread form are required.

16ER/EL/IR/IL-10 API RD Threading Insert

The 16ER/EL/IR/IL-10      API RD threading insert features a finer 10 TPI pitch, suitable for precision API pipe connections with improved surface finish.

22ER/EL/IR/IL-8 API RD Threading Insert

The 22ER/EL/IR/IL-8 API RD insert provides increased cutting stability for larger pipe diameters while maintaining an 8 TPI API thread profile.

22ER/EL/IR/IL-10 API RD Threading Insert

The 22ER/EL/IR/IL-10 API RD threading insert combines a larger insert size with a 10 TPI API round thread, suitable for heavy-duty oil and gas applications.

These API threading inserts are suitable for CNC lathe thread turning operations, including both single-insert and multi-insert tooling systems. Proper cutting fluid is recommended to improve chip evacuation and tool life.

Cutting parameters should be optimized according to pipe material, wall thickness, and machine rigidity.