The CNGN120412 BKU203 is a premium 80 diamond solid CBN turning insert designed for high-speed finishing and semi-finishing of hardened steel and chilled cast iron. The BKU203 CBN grade provides exceptional wear resistance, excellent thermal stability, and long tool life, making it ideal for precision CNC turning applications.
Technical Specifications
| Specification |
Details |
| Model |
CNGN120412 BKU203 |
| Product Type |
Solid CBN Turning Insert |
| Material |
Cubic Boron Nitride (CBN) |
| Grade |
BKU203 |
| Shape |
80 Diamond (Rhombic) |
| Insert Type |
Negative |
| Insert Size |
12 mm |
| Workpiece Material |
Hardened Steel, Cast Iron |
| ISO Tolerance |
N |
| Insert Clearance |
0 |
| Inscribed Circle (IC) |
12.7 mm |
| Thickness (S) |
4.76 mm |
| Corner Radius (RE) |
1.2 mm |
| Number of Cutting Edges |
4 |
| Mounting Style |
Clamp Type |
| Weight (1 Piece) |
Approx. 8 g |
| Pack Size |
Usually 1 or 2 Pieces |
| Application |
Finish Turning, Semi-Finishing, Hard Turning |
Dimensions follow the ISO CNGN120412 standard.
Features
- Solid CBN cutting material
- BKU203 grade
- Excellent wear resistance
- High thermal stability
- Precision cutting
- Long tool life
- Superior surface finish
- Stable machining performance
Applications
- Hard Turning
- Finish Turning
- Semi-Finishing
- CNC Turning
- Precision Machining
Suitable Materials
- Hardened Steel (4565 HRC)
- Chilled Cast Iron
- High Hardness Cast Iron
- Powder Metallurgy Components
Corrosion Resistance
- Excellent oxidation resistance
- High wear resistance
- Corrosion resistant during storage
- Suitable for dry machining
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