Kyocera WNMG080412WQ CA125P TMK00278 Turning Insert - Heavy Roughing
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- Stock: In Stock
- Model: CA125P
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TMK00278
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1. Product Overview
The Kyocera WNMG080412WQ with grade CA125P (MPN: TMK00278) is a premium indexable carbide turning insert engineered for high-performance CNC machining. Featuring an 80° rhombic (diamond) geometry with a 1.2 mm corner radius and the WQ chipbreaker profile, this insert delivers good surface finishes across steel, cast iron, forged parts workpieces. The PVD-coated CA125P substrate offers exceptional thermal stability and wear resistance, making it ideal for continuous and semi-interrupted cutting operations in modern manufacturing environments.
2. ISO Designation Breakdown
The model code WNMG080412WQ follows the ISO 1832 standard for indexable inserts. Each position defines a critical geometric or functional parameter:
| Position | Code | Parameter | Meaning |
| 1 | W | Insert Shape | 80° Rhombic (Diamond) |
| 2 | N | Relief Angle | 0° Relief (Neutral) |
| 3 | M | Tolerance Class | Class M (±0.05–0.13 mm) |
| 4 | G | Fixing & Hole | Cylindrical hole with chipbreaker |
| 5–6 | 08 | Inscribed Circle | 12.7 mm (1/2") |
| 7–8 | 04 | Insert Thickness | 4.76 mm (3/16") |
| 9–10 | 12 | Corner Radius | 1.2 mm |
| 11+ | WQ | Chipbreaker | WQ – Heavy Duty / Interrupted |
3. Engineering Dimensions & Geometry
All dimensions conform to ISO 1832:2017 tolerances for Class M inserts. Verified by CMM inspection on 100% production samples.
| Parameter | Symbol | Value | Tolerance | Unit |
| Inscribed Circle | IC | 12.7 | ±0.05 | mm |
| Insert Thickness | S | 4.76 | ±0.03 | mm |
| Hole Diameter | D1 | 5.5 | +0.05 / 0 | mm |
| Counterbore Diameter | D2 | 11.0 | ±0.1 | mm |
| Corner Radius | RE | 1.2 | ±0.05 | mm |
| Relief Angle | α | 0 | ±1° | ° |
| Wedge Angle | β | 11 | ±1° | ° |
| Inscribed Circle (calc) | M | 8.7 | ±0.08 | mm |
4. Grade Details – Key Grade Characteristics
Grade CA125P is a PVD-coated carbide grade developed by Kyocera for medium to high-speed machining of steels and stainless steels. The multi-layer TiAlN coating provides superior oxidation resistance and reduced crater wear.
| Substrate | PVD-coated fine-grained carbide (WC-Co) |
| Coating | TiAlN-based multilayer PVD |
| Hardness | 1,600 HV (±50) |
| Transverse Rupture Strength | 3,200 MPa |
| Thermal Stability | Up to 900°C continuous |
| Color Code | Bronze-Gold (PVD) |
5. Grade Comparison Matrix
Select the optimal grade for your application by comparing key performance indicators across the Kyocera PVD-grade family:
| Grade | Coating | ISO Range | Speed Factor | Best For |
| CA125P | TiAlN PVD | P15–P30 | 1.0× (Baseline) | Steel, SS, General |
| CA115P | TiAlN PVD | P10–P25 | 1.15× | High-speed steel |
| CA135P | TiAlN+TiN PVD | P20–P40 | 0.90× | Heavy interrupted |
| CA530 | CVD Al₂O₃+TiCN | P30–P50 | 0.85× | Cast iron, roughing |
6. Chipbreaker Profile
The WQ chipbreaker is optimized for heavy duty / interrupted. Its unique rake-face geometry promotes controlled chip curling and evacuation, reducing cutting forces and improving surface integrity.
| Chipbreaker Code | WQ |
| Cutting Type | Heavy Duty / Interrupted |
| Rake Geometry | Robust edge with negative land |
| Depth of Cut Range | 2.0 – 6.0 mm |
| Feed Range | 0.20 – 0.60 mm/rev |
| Surface Finish Capability | Good |
| Primary Materials | Steel, Cast Iron, Forged Parts |
7. Recommended Applications & Workpiece Materials
The CA125P grade combined with the WQ chipbreaker is validated for the following material groups and conditions:
| Material Group | ISO Code | Machinability | Typical Examples |
| Non-alloyed Steel | P1.1 – P1.3 | ★★★★★ Excellent | C35, C45, S235JR, 1045 |
| Low-alloy Steel | P2.1 – P2.5 | ★★★★☆ Very Good | 42CrMo4, 4140, 4340, 16MnCr5 |
| High-alloy Steel | P3.0 – P3.2 | ★★★☆☆ Good | H13, D2, M2, 17-4PH |
| Austenitic Stainless | M1.0 – M2.0 | ★★★☆☆ Good | 304, 316, 321 (work-hardening risk) |
| Martensitic Stainless | M3.0 – M3.2 | ★★★★☆ Very Good | 410, 420, 440C (≤ 30 HRC) |
| Gray Cast Iron | K1.1 – K2.2 | ★★★★☆ Very Good | GG20, GG25, GGG40, GGG50 |
8. Application Map by Operation
Use this matrix to identify the most suitable turning operation for this insert geometry:
| Operation Type | Suitability | Recommended ap / fn | Notes |
| Longitudinal Turning | ★★★★★ Excellent | Standard range | Primary application |
| Facing | ★★★★☆ Very Good | Reduce fn by 15% at center | Watch for chip evacuation at center |
| Profiling / Contouring | ★★★★☆ Very Good | Light cuts preferred | Use 0.4 mm radius for fine profiles |
| Grooving (Plunge) | ★★☆☆☆ Limited | Not recommended | Use dedicated grooving inserts |
| Interrupted Cutting | ★★★☆☆ Moderate | Reduce Vc by 25–30% | Use WQ or CQ for heavy interruption |
9. Recommended Cutting Conditions
Start with the median values below and fine-tune based on machine rigidity, workpiece condition, and desired productivity. Reduce speeds by 20–30% for castings with scale or forged surfaces.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed fn (mm/rev) | Depth of Cut ap (mm) | Coolant |
| Carbon Steel (≤ 45 HRC) | 200 – 250 | 0.20 – 0.60 | 2.0 – 6.0 | Wet / MQL |
| Alloy Steel (≤ 55 HRC) | 170 – 220 | 0.20 – 0.48 | 2.0 – 4.2 | Wet Recommended |
| Stainless Steel (304/316) | 180 – 220 | 0.16 – 0.60 | 2.0 – 3.6 | Wet Essential |
| Cast Iron (GG25/GGG50) | 150 – 210 | 0.20 – 0.60 | 2.0 – 6.0 | Dry / Air Blast |
10. Operating Guidelines
Adhering to these guidelines maximizes tool life and ensures repeatable part quality:
| Max Cutting Speed | 280 m/min (intermittent: reduce by 30%) |
| Max Feed Rate | 0.72 mm/rev (roughing) / 0.60 mm/rev (finishing) |
| Entry Angle | 75° – 95° (recommended: 85°) |
| Tool Overhang | ≤ 1.5× holder diameter for stability |
| Insert Seat | Clean and inspect before mounting; torque to 3.5 N·m |
| Edge Preparation | T-land 0.05 mm × 15° (standard); hone 0.03 mm for SS |
11. Toolholder Compatibility
This insert is compatible with standard ISO toolholders designed for WNMG 80° rhombic inserts. Ensure correct seat and shim pairing for safe clamping.
| External Turning | MWLNR/L 2020K08, MWLNR/L 2525M08 |
| Internal Boring | S08K-SWLCR/L06, S10K-SWLCR/L06 (for 06-size variants) |
| Screw Clamp | Compatible with all WNMG 80° rhombic holders (ISO 1832) |
| Shim Requirement | Use SW0804 shim for 08-size; SW0604 for 06-size |
| Clamp Screw | M2.5 × 6 mm (Torx T8) for 08-size; M2.2 for 06-size |
12. Packaging & Ordering Information
| Packaging Unit | 10 pieces per sealed plastic box (anti-corrosion) |
| Minimum Order | 10 pieces (1 box) |
| Unit Price | $7.0 USD per piece |
| Bulk Pricing | Contact sales for 50+ and 100+ quantity discounts |
| Lead Time | In stock; ships within 24 hours of order confirmation |
| Warranty | Full manufacturer warranty against material and coating defects |
13. Catalog Meta Data
| Manufacturer P/N | TMK00278 |
| EAN / UPC | Not assigned (industrial B2B product) |
| Country of Origin | Japan |
| HS Code | 8209.00.00 (Indexable inserts of carbide) |
| RoHS Compliance | Yes (Directive 2011/65/EU) |
| REACH Status | Compliant; no SVHC > 0.1% w/w |
Disclaimer: Cutting parameters are indicative starting values. Always perform test cuts and adjust for your specific machine setup, workpiece condition, and surface-finish requirements. Kyocera and Kyotow.com are not liable for tool failure due to improper application or operating conditions outside recommended ranges.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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正確な製品情報
Following the Japanese philosophy of Monozukuri (物の作り), we strive to maintain exceptional technical accuracy throughout our product catalog.
- Confirm dimensions, geometry, coating, and grade using the official Kyocera item code.
- Technical datasheets are available upon request.
- For technical clarification contact sales.kyotow@gmail.com.
返品・キャンセルポリシー
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100% Accuracy Guarantee:
Full refund or replacement will be provided if the verified Kyocera item received differs from the official item code specified in your order confirmation. -
Order Finality:
Due to automated procurement systems connected directly to global factory distribution channels, orders cannot be modified or cancelled once processing has commenced. -
Technical Assistance:
Please verify machine compatibility, insert geometry, coating, and application grade before placing your order.
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Need Technical Assistance?
Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
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Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。
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