CBN Inserts TNGA High Precision Cubic Boron Nitride Inserts for Hardened Steel & Cast Iron

Short Description:

Our TNGA CBN inserts are top-grade cubic boron nitride cutting tools engineered for high-precision, high-efficiency machining. With advanced Triple Negative Geometry Advanced (TNGA) design, they redefine hard turning and milling performance—saving you time and costs while delivering professional results.

Model: TNGA CBN Inserts
Material: Cubic Boron Nitride (CBN) + Tungsten Carbide Substrate
Application Materials: Hardened Steels (45–68 HRC), Cast Irons
Suitable Machines: CNC Lathes, Automatic Turning Machines
Machining Type: Finishing, Semi-finishing, High-Speed Turning

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Key Features & Benefits

Advanced TNGA Geometry
Enhances cutting edge strength, reduces vibration, and improves chip evacuation for smoother, more stable operations.

Extreme Thermal Stability
Withstands temperatures up to 1400°C, maintaining performance in high-speed and high-temperature machining.

Dual Cutting Edge Options
•Single cutting edge: Ideal for high-precision components requiring ultra-fine finishes;
•Six cutting edges: Optimizes mass production, reduces tool wear, and lowers replacement costs.

Superior Wear Resistance
Premium CBN material ensures extended tool life, minimizing downtime from frequent changes.

Mirror-Like Surface Finish
Eliminates the need for secondary finishing, achieving "hard turning as grinding" results.

Versatile Machining
Suitable for continuous/interrupted cutting, dry machining, MQL, or water-soluble coolants.

1.T-type CBN blades with single-edged tips excel in high-precision machining. Coatable CBN edges enhance tool longevity, ideal for precision components.

2.T-type CBN inserts with six-edged tips optimize high-volume production. With multiple cutting edges, they drastically reduce tool wear and promote sustainable manufacturing—ideal for eco-conscious large-scale operations

3.Sanmingzhi-style CBN blades offer excellent wear resistance and fully unleash the superior performance of CBN tools—ideal for high-durability machining applications.

Notes: Edge rounding W=0.15mm; customizable for different workpiece materials.

Application Scenarios

Hard Turning：Perfect for hardened steel parts (HRC45-68) like bearings, gears, and shafts.
High-Speed Milling：Boosts productivity for cast iron components (brake discs, engine blocks, pump housings).
Die & Mold Manufacturing：Delivers precision finishing for complex molds with tight tolerances.
Automotive & Aerospace：Ideal for mass production of high-precision metal components.