Kyocera CPMH090304HQ CA525 TAC01400 CNC Insert - Ultra-Precision
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- Stock: In Stock
- Model: CA525
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TAC01400
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1. Product Overview
The CPMH090304HQ CA525 TAC01400 is a premium-grade indexable carbide turning insert manufactured by Kyocera Corporation in Japan. Designed for precision CNC turning operations, this insert combines an ultra-fine grain carbide substrate with a multi-layer CVD coating to deliver exceptional wear resistance, thermal stability, and cutting performance across a wide range of steel machining applications.
With its 80° Rhombic (Diamond) geometry and HQ chipbreaker profile, the CPMH090304HQ is optimized for ultra-fine finishing, small components, providing consistent chip control, reduced cutting forces, and superior surface finish quality. Whether deployed in high-volume production or precision prototyping environments, this insert ensures reliable performance and extended tool life.
2. ISO Designation Breakdown
The CPMH090304HQ follows the ISO 1832 standard for indexable inserts. Each letter and number in the designation conveys critical geometric and functional information:
| Position | Code | Meaning |
|---|---|---|
| 1st Letter | C | 80° Rhombic (Diamond) |
| 2nd Letter | P | 11° Positive Clearance |
| 3rd Letter | M | ±0.05mm Dimensional Tolerance |
| 4th Letter | H | With Hole (Precision) |
| IC Designation | 09 | Inscribed Circle Diameter: 9.525mm (3/8") |
| Thickness | 03 | Nominal Thickness: 3.18mm (1/8") |
| Corner Radius | 04 | Corner Radius: 0.4mm |
| Suffix | HQ | Chipbreaker Style: High-precision finishing chipbreaker |
3. Engineering Dimensions & Geometry
| Parameter | Value | Tolerance |
|---|---|---|
| Inscribed Circle Diameter (IC) | 9.525mm (3/8") | ±0.05mm Dimensional Tolerance |
| Insert Thickness (S) | 3.18mm (1/8") | ±0.05mm Dimensional Tolerance |
| Corner Radius (r) | 0.4mm | ±0.05mm |
| Clearance Angle | 11° Positive Clearance | ±0.5° |
| Hole Diameter | 3.5mm (for 7-8mm IC) / 4.4mm (for 9-11mm IC) | +0.1mm |
| Counter Sink Diameter | 6.5mm (for 7-8mm IC) / 8.5mm (for 9-11mm IC) | +0.2mm |
4. Grade Details – Key Grade Characteristics
The CA525 grade is a high-performance CVD-coated carbide grade specifically engineered for steel machining applications. Below are the detailed characteristics:
| Characteristic | Specification |
|---|---|
| Substrate Material | Ultra-fine grain tungsten carbide (WC-Co) with high cobalt content |
| Coating System | CVD Multi-layer (TiN/TiCN/Al2O3) - Gold colored top layer |
| Hardness | HRA 91.5 |
| Transverse Rupture Strength | ≥ 3,200 MPa |
| Thermal Stability | Up to 1,000°C cutting temperature |
| Wear Resistance | Excellent crater and flank wear resistance |
| Fracture Resistance | High toughness for interrupted cutting |
| Insert Color | Gold/Yellow (TiN top layer) |
| ISO Application Class | P25-P35 (Steel machining) |
| Primary Application Range | Medium to roughing of carbon steel, alloy steel, and cast steel |
5. Grade Comparison Matrix
Compare CA525 with adjacent grades in the Kyocera portfolio to select the optimal grade for your application:
| Grade | Coating | ISO Range | Speed | Wear Resistance | Toughness |
|---|---|---|---|---|---|
| CA525 | CVD TiN/TiCN/Al₂O₃ | P25-P35 | Medium-High | ★★★★☆ | ★★★★★ |
| CA510 | CVD TiN/TiCN/Al₂O₃ | P15-P25 | High | ★★★★★ | ★★★☆☆ |
| CA530 | CVD TiN/TiCN/Al₂O₃ | P35-P45 | Medium | ★★★☆☆ | ★★★★★ |
6. Chipbreaker Profile
The HQ chipbreaker on the CPMH090304HQ is engineered with the following characteristics:
- Profile Design: High-precision finishing chipbreaker
- Geometric Features: Minimal cutting forces, exceptional surface quality
- Primary Applications: Ultra-fine finishing, small components
- Chip Control: Excellent chip curling and breaking across recommended feed rates
- Edge Preparation: Precision-honed edge for optimal balance between sharpness and strength
7. Recommended Applications & Workpiece Materials
The CPMH090304HQ CA525 is ideally suited for the following workpiece materials:
Carbon Steel (≤ 0.6% C), Alloy Steel (≤ 40 HRC), Stainless Steel (304, 316), Free-Cutting Steel
| Material | Machinability Rating | Recommended Operation |
|---|---|---|
| Carbon Steel (C35, C45, C60) | ★★★★★ Excellent | Roughing, Semi-Finishing, Finishing |
| Alloy Steel (4140, 4340, 8620) | ★★★★☆ Very Good | Semi-Finishing, Medium Roughing |
| Cast Steel (GS-52, GS-60) | ★★★★☆ Very Good | Roughing, General Turning |
| Stainless Steel (304, 316) | ★★★☆☆ Good | Semi-Finishing, Finishing |
| Tool Steel (H13, D2, O1) | ★★★☆☆ Good | Light Roughing, Semi-Finishing |
8. Application Map by Operation
Performance suitability matrix for the CPMH090304HQ HQ across common turning operations:
| Operation Type | Suitability | Recommended Depth of Cut (ap) | Recommended Feed (fn) |
|---|---|---|---|
| Roughing | Not Recommended | 1.0-3.0 mm | 0.15-0.30 mm/rev |
| Semi-Finishing | Good | 0.5-2.0 mm | 0.10-0.25 mm/rev |
| Finishing | Excellent | 0.2-1.0 mm | 0.05-0.12 mm/rev |
| Continuous Cutting | Excellent | Variable | Variable |
| Interrupted Cutting | Limited | Reduce by 30% | Reduce by 20% |
9. Recommended Cutting Conditions
Optimized cutting parameters for the CPMH090304HQ CA525 when machining carbon and alloy steels:
| Operation | Cutting Speed Vc (m/min) | Feed Rate fn (mm/rev) | Depth of Cut ap (mm) |
|---|---|---|---|
| Roughing | 160-220 | 0.15-0.30 | 1.0-3.0 |
| Finishing | 220-300 | 0.05-0.12 | 0.2-1.0 |
Note: Values are guidelines for stable conditions with adequate coolant supply. Reduce speeds by 15-20% for alloy steels and 25-30% for stainless steels. Always perform test cuts to optimize for your specific machine and setup.
10. Operating Guidelines
- Coolant Recommendation: High-pressure water-soluble coolant (5-8% concentration) or neat cutting oil for finishing operations
- Entry Strategy: Use ramp entry or arc entry to avoid impact loading on the insert edge
- Tool Overhang: Minimize tool overhang to ≤ 1.5x holder height to reduce vibration and improve stability
- Insert Seating: Ensure clean insert pocket and proper seating torque (2.5-3.5 N·m for M2.5 screws, 3.5-4.5 N·m for M3.5 screws)
- Chip Management: Verify chip flow direction; use chip deflectors if necessary to protect the workpiece surface
- Speed Ramp-Up: Start at 70% of recommended Vc and increase gradually while monitoring tool wear and surface finish
- Tool Life Check: Monitor flank wear (VB). Replace insert when VB reaches 0.3mm for roughing or 0.15mm for finishing
- Storage: Store inserts in original packaging away from direct moisture and temperature extremes
11. Toolholder Compatibility
The CPMH090304HQ is a positive-style insert requiring compatible positive toolholders. Recommended holder configurations:
| Holder Type | Compatible Models | Shank Size |
|---|---|---|
| External Turning | PCLNR/L (95° approach angle, positive rake) | 12x12mm, 16x16mm |
| Specific Models | PCLNR1212K09, PCLNL1212K09, PCLNR1616H09, PCLNL1616H09 | Standard DIN 4980 |
| Clamp Style | Lever lock (L) or Top clamp (T) | — |
Ensure holder pocket is clean and undamaged before insert installation. Use genuine Kyocera toolholders for optimal performance and safety.
12. Packaging & Ordering Information
| Attribute | Details |
|---|---|
| Manufacturer Part Number | TAC01400 |
| Quantity per Package | 10 inserts per pack |
| Packaging Type | Anti-static plastic blister with foam insert |
| Label Information | Model code, grade, batch number, barcode, ISO certification mark |
| Minimum Order | 1 pack (10 pieces) |
| Bulk Availability | Volume discounts available for 50+ packs |
13. Catalog Meta Data
| Field | Value |
|---|---|
| Product Series | CA500 Series |
| Coating Code | CVD-Gold |
| Insert Classification | Positive Insert with Hole (H-Tolerance) |
| Dimensional Standard | ISO 1832 |
| Catalog Revision | Rev. 2026.00 |
| Country of Manufacture | Japan |
| Warranty | Standard manufacturer warranty against defects |
Why Buy from Kyotow.com?
Genuine OEM industrial cutting tools backed by full manufacturer warranty. Expert CNC tooling application support. Fast worldwide shipping with tracked delivery. Bulk and institutional orders welcome.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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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.
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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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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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