CNC Lathe Solid CBN Cutting Inserts, Premium Cubic Boron Nitride Turning Tools for Hard Alloy

Super-hard solid CBN turning inserts engineered for wear-resistant lathe cutting of cast iron, hardened steel, and hard alloys.

Many CNC shop owners ask which material performs best in hard turning. The answer is CBN inserts. Solid CBN inserts are purpose-built for cubic boron nitride hard turning of hardened steel, chilled cast iron, and roll steel. They maintain edge stability at the point where conventional carbide tools begin to wear and degrade surface finish. CBN inserts support both dry machining and minimal-coolant setups to align with your shop's EHS requirements, and they shorten cycle times by enabling the "turn instead of grind" workflow.

CBN inserts reduce the number of tooling changes required per operation, improve chip evacuation, and prevent the chip packing that damages finished surfaces. Solid and tipped grades are available to match interrupted or continuous cutting conditions. The inserts offer excellent setup flexibility so you can tune parameters to your own workpiece, and they deliver consistent surface integrity without secondary polishing or grinding. CBN inserts fit standard ISO lathe tool holders for simple integration, lower long-term tooling cost compared with the total cost of grinding operations, and hold tight tolerance stability across long production runs. Widely tested by mold, bearing, and hydraulic component manufacturers, CBN inserts are the reliable superhard cutting solution for your CNC lathe.

• Superhard cubic boron nitride grade maintains edge sharpness and dimensional stability during hardened steel turning.
• Enables the "turn instead of grind" process to cut cycle time and eliminate secondary grinding steps.
• Compatible with dry machining and minimal-coolant setups for easier EHS compliance.
• Reduces tooling changes per operation and improves overall machining efficiency.
• Optimized chip evacuation prevents chip packing and protects finished surface quality.
• Available in solid and tipped grades for interrupted or continuous cutting conditions.
• Delivers consistent surface integrity without secondary polishing or grinding.
• Fits standard ISO lathe tool holders for straightforward integration.
• Lowers long-term tooling cost versus the total cost of grinding operations.
• Holds tight tolerance stability across long production runs.

Each insert is produced through a controlled manufacturing workflow, from raw cubic boron nitride powder through sintering, edge preparation, and final inspection, ensuring repeatable performance batch after batch.

Insert geometry, edge preparation, grades, and coatings can be tailored to your workpiece material and cutting parameters, supporting both prototype runs and volume production.

Our manufacturing facility combines advanced sintering equipment, precision grinding lines, and in-house quality control to deliver consistent superhard cutting tools at production scale.

Inserts are packed in protective cases with clearly labeled grade and geometry information, then secured in export cartons suitable for international shipping.