K Series Insert For Cast Iron

A K Series insert is a carbide insert designed for ISO K cast iron machining. It is suitable for turning gray cast iron, ductile cast iron, compacted graphite iron, and other common cast iron materials in finishing, semi-finishing, and roughing applications.

Our K Series inserts are suitable for gray cast iron, ductile cast iron, and compacted graphite iron. Different cast iron grades have different machining characteristics, so the right insert geometry and cutting conditions should be selected according to workpiece hardness, interruption level, and productivity target.

Cast iron contains abrasive constituents and usually generates short chips, which place special demands on insert wear resistance and edge stability. K Series inserts are designed to provide stronger wear resistance, stable cutting forces, and more reliable performance in cast iron turning applications.

Positive inserts are usually a better choice when lower cutting forces, better tool access, or lighter cutting conditions are needed. Negative inserts are generally preferred when stronger cutting edges and better stability are required, especially in roughing or interrupted cast iron machining.

Yes, K Series inserts are suitable for both continuous and semi-interrupted cutting in cast iron. They are especially practical for cast iron components with interrupted surfaces, keyways, or uneven profiles where stable chip flow, edge strength, and predictable wear behavior are important.

DOHRE CNC is a professional carbide insert manufacturer providing K Series inserts for cast iron turning applications. We combine high-hardness carbide substrates, precision CNC pressing and grinding, controlled coating quality, and strict dimensional inspection to support stable wear resistance, consistent edge quality, and reliable machining performance in ISO K materials.