Mitsubishi CNMA120408 MC5005 CNMA432 Coated Carbide Turning Insert (10 pcs)
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This Mitsubishi Materials DIAEDGE CNMA120408 (ANSI CNMA432) negative-rake turning insert is in MC5005 grade, a coated grade made for turning cast iron (ISO K), as marked on the package with the K application circled. The designation decodes to an 80-degree rhombic (C) shape, 0 degree clearance (N), M-class tolerance, a cylindrical hole with no chipbreaker (A), 12 mm cutting edge length, 4.76 mm (3/16 in) thickness and 0.8 mm (1/32 in) nose radius. Package-printed cutting data for ISO K lists 195-315 m/min (640-1030 SFM) at 0.20-0.56 mm/rev (0.008-0.022 IPR). Made in Japan and supplied new in the original Mitsubishi case with multiple inserts; fits holders for CN-style negative 80-degree inserts with a center hole.
Product Specifications
| Brand | Mitsubishi Materials |
| Series | DIAEDGE |
| MPN | CNMA120408 MC5005 |
| ANSI Designation | CNMA432 |
| Grade | MC5005 |
| Insert Shape | C (80 Degree Rhombic) |
| Clearance Angle | N (0 Degree) |
| Tolerance Class | M |
| Hole/Chipbreaker Type | A (Cylindrical Hole, No Chipbreaker) |
| Cutting Edge Length | 12 mm |
| Thickness | 4.76 mm (3/16 in) |
| Nose Radius | 0.8 mm (1/32 in) |
| Insert Material | Carbide |
| Coating | Coated |
| Operation | Turning |
| Workpiece Material | ISO K (Cast Iron) |
| Cutting Speed (vc) | 195-315 m/min (640-1030 SFM) |
| Feed Rate (f) | 0.20-0.56 mm/rev (0.008-0.022 IPR) |
| Rake | Negative |
| Country of Origin | Japan |