| EDP Number | 191R284 |
| Product Code-ANSI | CNMG644ENZ-AC420K |
| Product Code-ISO | CNMG190616N-UZ |
| Manufacturer Grade Identification | AC420K |
| Series | AC420K |
| Cutting Edge Length (Decimal Inch) | 0.7598" |
| Cutting Edge Length (mm) | 19.30mm |
| Nose Radius (Decimal Inch) | 0.0630" |
| Nose Radius (mm) | 1.60mm |
| Inscribed Circle Diameter (Decimal Inch) | 0.7500" |
| Inscribed Circle Diameter (mm) | 19.05mm |
| Hole Diameter (mm) | 7.94mm |
| Insert Thickness (Decimal Inch) | 0.2500" |
| Insert Thickness (mm) | 6.35mm |
| Relief Angle | 0 Degree |
| Rake Angle | Negative |
| Insert Material | Carbide |
| Tolerance Class | M |
| Chip Breaker | ENZ |
| Corner Angle | 80 |
| Insert Style | CNMG |
| Primary Workpiece Material | Cast Iron |
| Coating | Super FF coat |
| Coating Process | CVD |
| Standard Designation of the Grade, Main Application | K20, K15, K15 |
| Insert Holding Method | Pin & Clamp |
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