Insert cross-reference · 80° Diamond · 0° clearance · 12mm IC · 0.4mm Rε (finishing)
CNMG120404 Cross Reference / ANSI CNMG 431
Equivalent CNMG120404 inserts across 7 brands — Sandvik, ISCAR, Kennametal, Walter, Tungaloy, Seco, Mitsubishi. In US (inch, ANSI B212.4) catalogs this same insert is listed as CNMG 431 — identical geometry, different designation system. Same ISO 1832 geometry class; grades, coatings and application windows differ by manufacturer. Treat equivalents as starting points and verify on a sample part: a cross-reference matches the geometry, not the process.
This is the finishing size of the family: the smaller nose radius lowers cutting force and lets you hold a finer surface finish at light depths of cut, at the cost of a weaker corner.
Brand equivalents — CNMG120404
| Brand | Designation / grade | Coating | Application |
|---|---|---|---|
| Sandvik | CNMG120404 GC4325 | Inveio® CVD Al₂O₃ | P20–P30 |
| ISCAR | CNMG120404 IC8250 | SUMO TEC® CVD Al₂O₃ | P20–P30 |
| Kennametal | CNMG120404 KCP25B | KENGold™ CVD | P20–P30 |
| Walter | CNMG120404 WPP20S | Tiger·tec® Silver CVD | P20–P30 |
| Tungaloy | CNMG120404 T9125 | CVD TiCN/Al₂O₃ | P20–P30 |
| Seco | CNMG120404 TP2500 | Duratomic® CVD | P20–P30 |
| Mitsubishi | CNMG120404 MC6025 | CVD Al₂O₃ | P20–P30 |
Grades used Sandvik GC4325 · ISCAR IC8250 · Kennametal KCP25B · Walter WPP20S · Tungaloy T9125 · Seco TP2500 · Mitsubishi MC6025
23 brands list CNMG120404 in their published standard programs, with 2,519 catalog variants across chipbreakers, grades and coatings. Variant count shows how deep each maker's standard range goes for this geometry. It is not a quality ranking.
| Brand | Catalog variants |
|---|---|
| Sumitomo | 449 |
| Kyocera | 365 |
| Mitsubishi Materials | 251 |
| Kennametal | 249 |
| Tungaloy | 159 |
| Ingersoll | 143 |
| Sandvik-Coromant | 139 |
| Korloy | 111 |
| Widia | 110 |
| Hoffmann Group | 106 |
| Walter | 101 |
| SECO Tools | 75 |
| Iscar | 64 |
| ZCC Cutting Tools | 51 |
| Boehlerit | 35 |
| Ceratizit | 34 |
| WNT | 25 |
| Ceramtec | 24 |
| Hahn+Kolb | 14 |
| Komet Group | 8 |
| Misumi | 4 |
| MOLDINO Tool Engineering | 1 |
| NTK Cutting Tools | 1 |
Hoffmann Group and Hahn+Kolb are distributor private-label programs (GARANT, ATORN). Counts are catalog listings, not stock levels. Availability varies by region and distributor.
ISO designation decoded — what CNMG120404 means
- C — shape
- 80° rhombic (diamond)
- N — clearance angle
- relief angle 0° (negative insert, double-sided use possible)
- M — tolerance
- class M — molded, medium tolerance on inscribed circle and corner point (typically ±0.05–0.13 mm depending on size)
- G — type
- cylindrical fixing hole, chipbreaker on both faces (double-sided insert)
- 12 — cutting edge length / IC
- 12 mm nominal (inscribed circle / edge length class)
- 04 — thickness
- insert thickness 4.76 mm
- 04 — corner radius
- Rε = 0.4 mm nose radius
Cross-reference a grade at its ISO position
Type any maker's grade (e.g. GC4325, AC820P, T9215) to see grades other brands publish at the same ISO application position. VERIFIED = multi-source consensus; 2+ CHARTS = placement confirmed by two or more manufacturer-published charts; SINGLE-SOURCE = one chart only. Comparable at ISO position — not identical performance. Verify on a sample part.
Frequently asked questions
Does this cross-reference favour specific brands?
No. Comparable grades appear here only because manufacturer-published comparison charts place them at the same ISO application position. No manufacturer pays for placement, nothing on this page is sponsored, and CuttingToolsAI sells no tools and earns no commission. Placements backed by a single chart are flagged as such, and every comparison ends the same way: verify on a sample part before switching.
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Related designations