Polycrystalline Cubic Boron Nitride (PCBN) is the second hardest material after diamond. It excels in machining high-hardness ferrous materials such as cast iron and hardened cast iron, sintered materials, steel, and hardened steel (with hardness above 40 HRC). Cutting tools made from PCBN offer a cost-effective alternative to grinding and are widely recognized across industries. PCBN inserts are the most commonly used cutting tools made from this material. Additionally, specially designed PCBN boring tools are suitable for micro-machining hardened steels. PCBN tools can also be applied for reaming and milling operations. Halcyon can custom-manufacture PCBN tools tailored to your specific requirements.