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| Material Number | 6178239 |
| ISO Catalog ID | SDMT120412EN41 |
| ANSI Catalog ID | SDMT120412EN41 |
| Grade | KCSM40 |
| [D] Insert IC Size | 12.7 mm |
| [D] Insert IC Size | .5 in |
| [S] Insert Thickness | 4.76 mm |
| [S] Insert Thickness | .1874 in |
| [L10] Insert Cutting Edge Length | 12.7 mm |
| [L10] Insert Cutting Edge Length | .5 in |
| [Rε] Corner Radius | 1.2 mm |
| [Rε] Corner Radius | .0468 in |
| Average Chip Thickness [HM] | 0.05 mm |
| Average Chip Thickness [HM] | .002 in |
| Cutting Edges per Insert | 4 |
Grades
KCSM40
Coated carbide grade with an advanced PVD TiAlN/TiN coating. Premium substrate with newly developed binder composition. KCSM40 is a high-performance grade for titanium, super alloys, and stainless steel. High thermal shock resistance of the substrate makes this grade ideal for wet machining. First choice for roughing and unsuitable cutting conditions.
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| 5230 VS12 • Insert Selection Guide | ||||||
| Material Group | Light | General | Heavy | |||
| – | (Light geometry) | – | (Strong geometry) | |||
| – | wear |  | toughness | |||
| – | Geometry | Grade | Geometry | Grade | Geometry | Grade |
| P1–P2 | .E..422 | SP6519 | .E..41 | SP6519 | .E..41 | SP6519 |
| P3–P4 | .E..423 | SP6519 | .E..423 | SP6519 | ...TN | MP91M |
| P5–P6 | .E..41 | SP6519 | .E..423 | SP6519 | ...TN | SP6519 |
| M1–M2 | .E..422 | KCSM40 | .E..41 | KCSM40 | .E..423 | KCSM40 |
| M3 | .E..423 | KCSM40 | .E..423 | KCSM40 | ...TN | KCSM40 |
| K1–K2 | – | – | – | – | – | – |
| K3 | – | – | – | – | – | – |
| N1–N2 | – | – | – | – | – | – |
| N3 | – | – | – | – | – | – |
| S1–S2 | .E..422 | X500 | .E..41 | KCSM40 | .E..423 | KCSM40 |
| S3 | .E..422 | KCSM40 | .E..423 | KCSM40 | .E..41 | KCSM40 |
| S4 | .E..41 | X500 | .E..423 | X500 | ...TN | X500 |
| H1 | – | – | – | – | – | – |
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