2-Pack ZIMI-CNC TNMG332 / TNMG160408 CBN-6 Carbide Inserts For Hardened Steel - Boron Nitride

If you're machining hardened steel, you need inserts that can take the heat.

These ZIMI-CNC inserts are made from CBN-6 (cubic boron nitride), which is perfect for tough jobs.

They're the TNMG160408 style (also known as TNMG332), with a 16mm blade length, 4.76mm thickness, and a 0.8mm corner radius.

They can handle some serious heat—up to 1500°C—and have a hardness around 3000-5000HV.

Use them in external lathe holders or boring bars.

This pack comes with two inserts.

Great for precision work on hard materials.