Kyocera TPMR160308HQ CA125P TMK00430 Turning Insert - Fine finishing
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- Stock: In Stock
- Model: CA125P
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TMK00430
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1. Product Overview
The TPMR160308HQ is a premium-grade Triangle indexable carbide insert manufactured by Kyocera Corporation under the CA125P grade classification. Designed specifically for fine finishing, light cutting, this insert combines a high-performance PVD multi-layer coating with a robust fine-grained carbide substrate to deliver exceptional wear resistance, thermal stability, and edge integrity in demanding CNC turning environments.
With an inscribed circle of 16.0 mm, a 3.18 mm thickness, and a 0.8 mm corner radius, the TPMR160308HQ is optimized for operations requiring mirror surfaces. The integral HQ chipbreaker geometry ensures controlled chip formation, reduced cutting forces, and extended tool life—making it the ideal choice for high-precision manufacturing across automotive, aerospace, and general engineering sectors.
2. ISO Designation Breakdown
Every Kyocera insert follows the international ISO 1832 designation system. Below is the complete decode for TPMR160308HQ:
| Position | Code | Meaning |
|---|---|---|
| Shape | T | Triangle insert (60° included angle) |
| Relief Angle | P | 11° relief angle |
| Tolerance Class | M | Precision class (±0.025 mm on IC, ±0.13 mm on thickness) |
| Fixing & Hole | R | Cylindrical hole with countersink (chipbreaker integral) |
| Inscribed Circle (IC) | 16 | 16.0 mm inscribed circle diameter |
| Thickness | 03 | 3.18 mm nominal thickness |
| Corner Radius | 08 | 0.8 mm nose radius |
| Chipbreaker | HQ | High-precision finishing chipbreaker for mirror surfaces |
3. Engineering Dimensions & Geometry
All dimensions conform to ISO 1832:2017 tolerances. Critical measurements are verified via CMM (Coordinate Measuring Machine) during final inspection.
| Parameter | Value | Tolerance |
|---|---|---|
| Inscribed Circle (IC) | 16.0 mm | ±0.025 mm |
| Nominal Thickness (S) | 3.18 mm | ±0.13 mm |
| Corner Radius (rε) | 0.8 mm | ±0.05 mm |
| Hole Diameter (d1) | 6.35 mm | +0.08 / 0 mm |
| Counterbore Diameter | 11.5 mm | ±0.1 mm |
| Inscribed Circle Height | 12.70 mm | ±0.05 mm |
4. Grade Details – Key Grade Characteristics
Grade CA125P is a flagship PVD-coated carbide grade from Kyocera’s advanced materials portfolio, engineered for medium to high-speed machining of ferrous materials.
| Coating Technology | PVD (Physical Vapor Deposition) Multi-layer Coating |
| Substrate | Fine-grained WC-Co carbide with high cobalt content |
| Color Code | Bronze-Copper (PVD signature) |
| Hardness | 1,600 HV (Vickers) |
| Transverse Rupture Strength | ≥ 3,200 N/mm² |
| Operating Temperature | Up to 900°C (1,652°F) intermittent |
| Primary Application | Steel (P10–P30), Stainless Steel (M10–M20), Cast Iron (K15–K25) |
5. Grade Comparison Matrix
Selecting the correct grade is critical for optimizing tool life and surface finish. The matrix below positions CA125P within Kyocera’s steel-turning ecosystem:
| Grade | Coating | Wear Resistance | Toughness | Best For |
|---|---|---|---|---|
| CA125P | PVD Multi-layer | ★★★★☆ | ★★★★☆ | Steel, Stainless Steel |
| CA115P | PVD Thin | ★★★★★ | ★★★☆☆ | High-speed finishing |
| CA135P | PVD Thick | ★★★☆☆ | ★★★★★ | Interrupted cuts, heavy roughing |
6. Chipbreaker Profile
The HQ chipbreaker is specifically engineered for fine finishing, light cutting. Its unique land-and-groove topology creates a controlled chip curl radius that promotes safe chip evacuation while minimizing burr formation.
- Chip Control: Optimized for short, manageable chips in continuous and light interrupted cuts
- Edge Preparation: Micro-honed T-land (0.05–0.10 mm) for enhanced edge stability at low feeds
- Surface Finish: Designed to achieve Ra 0.4–1.6 µm depending on feed rate and material
- Coolant Compatibility: Performs with emulsion, synthetic, or MQL (Minimum Quantity Lubrication) systems
7. Recommended Applications & Workpiece Materials
The TPMR160308HQ with grade CA125P excels across a broad spectrum of ferrous materials. Recommended workpiece groups include:
- Carbon Steels: C35, C45, C60 (ISO P25–P35 range)
- Alloy Steels: 4140, 4340, 16MnCr5 (≤ 42 HRC)
- Stainless Steels: 304, 316, 321 (austenitic grades)
- Tool Steels: H13, D2 (pre-hardened condition, ≤ 40 HRC)
- Cast Irons: GG25, GG30 (gray cast iron)
8. Application Map by Operation
| Operation | Suitability | Notes |
|---|---|---|
| External Turning | ✓✓✓ Excellent | Primary application for T-Insert geometry |
| Internal Boring | ✓✓ Good | Use with appropriate boring bar (min. Ø20 mm) |
| Facing | ✓✓✓ Excellent | Stable chip evacuation with HQ geometry |
| Grooving/Parting | ✗ Not recommended | Use dedicated groove/parting inserts |
| Profiling | ✓✓ Good | Corner radius 0.8 mm allows fine contouring |
9. Recommended Cutting Conditions
Parameters below are starting recommendations. Optimize based on machine rigidity, workpiece condition, and desired productivity:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) | Condition |
|---|---|---|---|---|
| Carbon Steel (≤ 0.45% C) | 180–280 m/min | 0.05–0.15 mm/rev | 0.1–0.5 mm | Wet/Dry |
| Alloy Steel (≤ 42 HRC) | 150–220 m/min | 0.05–0.15 mm/rev | 0.1–0.5 mm | Wet recommended |
| Stainless Steel (Austenitic) | 120–180 m/min | 0.05–0.15 mm/rev | 0.1–0.5 mm | Wet mandatory |
| Cast Iron (Gray/GG) | 140–200 m/min | 0.05–0.15 mm/rev | 0.1–0.5 mm | Dry/Wet |
10. Operating Guidelines
To maximize insert life and maintain dimensional accuracy, observe the following best practices:
- Tool Overhang: Minimize overhang to ≤ 1.5× holder diameter to suppress vibration
- Coolant Delivery: Direct high-pressure coolant (≥ 10 bar) to the cutting zone for stainless steel applications
- Entry Strategy: Use ramp entry or circular interpolation; avoid direct plunge into solid material
- Edge Inspection: Check for flank wear (VB) every 15–20 min of cutting time; replace when VB ≥ 0.3 mm
- Storage: Keep inserts in original packaging until use; avoid humidity > 60% RH
- Mounting Torque: Tighten clamp screw to 2.5–3.5 N·m using a torque wrench; verify seating with dial indicator
11. Toolholder Compatibility
The TPMR160308HQ is designed for standard ISO toolholders with the following shank and clamp configurations:
- Compatible Holders: STFCR/L, STGCR/L, MTJNR/L, PTJNR/L
- Clamp System: Lever-lock or top-clamp (depending on holder series)
- Shank Sizes: 16×16 mm, 20×20 mm, 25×25 mm (match to insert size for stability)
- Insert Seat: Ensure holder seat is clean and free of burrs; seat angle must match insert relief angle
- Replacement Screw: Use Kyocera genuine Torx® screws (M3.5 or M4.0 depending on insert size)
12. Packaging & Ordering Information
| Packaging Type | Individual plastic pocket + anti-corrosion VCI film |
| Standard Pack Quantity | 10 inserts per pack |
| Label Information | Kyocera hologram, batch code, grade verification QR |
| MPN (Manufacturer Part Number) | TMK00430 |
| Unit Price | USD 7.00 per insert (volume discounts available) |
| Minimum Order | 1 pack (10 units) |
| Stock Status | In Stock – Ready for immediate dispatch |
13. Catalog Meta Data
| Catalog Series | Kyocera Turning Insert Series – CA125P Grade |
| Catalog Page Reference | Vol. 3, Section 2.4 (Turning Inserts – Steel Grades) |
| Replacement For | Compatible with ISO-standard TPMR holders from major manufacturers |
| Industry Standards | ISO 1832, JIS B 4120, DIN 4983 |
| Environmental Compliance | RoHS 3 (2015/863/EU), REACH SVHC-free |
Disclaimer: Cutting parameters and performance data are indicative starting values. Actual results depend on machine condition, workpiece material variance, coolant quality, and operator technique. Always conduct a test cut before full production runs. Kyocera and CA125P are registered trademarks of Kyocera Corporation. Kyotow.com is an authorized distributor of genuine Kyocera industrial cutting tools.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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Manufacturing and dispatch typically require 4–5 weeks. Once production begins, cancellations cannot be accommodated. -
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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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