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| Material Number | 6970346 |
| ISO Catalog ID | SNHJ120608ENLD |
| ANSI Catalog ID | SNHJ442ENLD |
| Grade | KCK20B |
| [D] Insert IC Size | 12.7 mm |
| [D] Insert IC Size | 0.5 in |
| [S] Insert Thickness | 6.35 mm |
| [S] Insert Thickness | 0.25 in |
| [L10] Insert Cutting Edge Length | 12.7 mm |
| [L10] Insert Cutting Edge Length | 0.5 in |
| [Rε] Corner Radius | 0.8 mm |
| [Rε] Corner Radius | 0.031 in |
| Average Chip Thickness [HM] | 0.055 mm |
| Average Chip Thickness [HM] | 0.0022 in |
| Cutting Edges per Insert | 8 |
Grades
KCK20B
Composition: A multilayered coating with thick MTCVD TiCN-Al2O3-TiOCN layers applied over a carbide substrate specifically engineered for cast irons.
Application: Delivers consistent performance in high-speed machining of grey and ductile irons. The substrate design permits the insert to stay in the cut for a long time at high speeds with minimum deformation. The thick CVD coating and post-coat treatment provide superior wear resistance ensuring long and consistent tool life. Can be applied both in straight and lightly interrupted cuts.
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| HARVI™ Ultra 8X • Insert Selection Guide II - using inserts KSSM8+ (SNPJ12-GD) | ||||||
| Material Group | Light | General | Heavy | |||
| – | (Light geometry) | – | (Strong geometry) | |||
| – | wear |  | toughness | |||
| – | Geometry | Grade | Geometry | Grade | Geometry | Grade |
| P1–P2 | .S..GD | KCPK30 | .S..GD | KCPK30 | .S..GD | KCPM40 |
| P3–P4 | .S..GD | KCPK30 | .S..GD | KCPK30 | .S..GD | KCPM40 |
| P5–P6 | .S..GD | KCPK30 | .S..GD | KCPK30 | .S..GD | KCPM40 |
| M1–M2 | .S..GD | KCPK30 | .S..GD | KCPK30 | .S..GD | KCPM40 |
| M3 | .S..GD | KCPK30 | .S..GD | KCPK30 | .S..GD | KCPM40 |
| K1–K2 | .S..GD | KCK20B | .S..GD | KCK20B | .S..GD | KCK15 |
| K3 | .S..GD | KCK20B | .S..GD | KCK20B | .S..GD | KCK20B |
| N1–N2 | – | – | – | – | – | – |
| N3 | – | – | – | – | – | – |
| S1–S2 | – | – | – | – | – | – |
| S3 | – | – | – | – | – | – |
| S4 | – | – | – | – | – | – |
| H1 | – | – | – | – | – | – |
| HARVI™ Ultra 8X • Insert Selection Guide I | ||||||
| Material Group | Light | General | Heavy | |||
| – | (Light geometry) | – | (Strong geometry) | |||
| – | wear | | toughness | |||
| – | Geometry | Grade | Geometry | Grade | Geometry | Grade |
| P1–P2 | .E..LEH | KCSM40 | .E..LEH | KCSM40 | .S..GDH | KCSM40 |
| P3–P4 | .E..LEH | KCSM40 | .E..LEH | KCSM40 | .S..GDH | KCSM40 |
| P5–P6 | .E..LEH | KCSM40 | .E..LEH | KCSM40 | .S..GDH | KCSM40 |
| M1–M2 | .E..LEH | KCSM40 | .E..LEH | KCSM40 | .S..GDH | KCSM40 |
| M3 | .E..LEH | KCSM40 | .S..GDH | KCSM40 | .S..GDH | KCSM40 |
| K1–K2 | – | – | – | – | – | – |
| K3 | – | – | – | – | – | – |
| N1–N2 | – | – | – | – | – | – |
| N3 | – | – | – | – | – | – |
| S1–S2 | .E..LEH | KCSM40 | .E..LEH | KCSM40 | .S..GDH | KCSM40 |
| S3 | .E..LEH | KCSM40 | .S..GDH | KCSM40 | .S..GDH | KCSM40 |
| S4 | .E..LEH | KCSM40 | .S..GDH | KCSM40 | .S..GDH | KCSM40 |
| H1 | – | – | – | – | – | – |
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