Kyocera TNMG160408 CA125P TMK00229 Turning Insert - General Turning

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- Stock: In Stock
- Model: CA125P
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TMK00229
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Product Overview
The Kyocera TNMG160408 CA125P TMK00229 is a premium turning insert engineered for general turning operations in modern CNC turning centers. Manufactured in Japan to exacting ISO 1832 standards, this triangular insert delivers exceptional dimensional accuracy, superior surface finish, and extended tool life across a broad spectrum of ferrous and non-ferrous workpiece materials.
Featuring a negative insert design with optimized chipbreaker geometry, the TNMG160408 ensures stable chip evacuation even at elevated cutting parameters. The CA125P grade substrate combines a ultra-fine tungsten carbide base with a multi-layer TiAlN PVD coating, offering an optimal balance between wear resistance and mechanical toughness for continuous and light interrupted cuts.
ISO Designation Breakdown
The TNMG160408 designation follows the ISO 1832:2004 standard for indexable inserts. Each alphanumeric segment conveys critical geometric and tolerance information:
| ISO Code | Meaning | Specification |
|---|---|---|
| T | Insert Shape | Triangular (60°) |
| N | Relief Angle | 0° (Negative) |
| M | Tolerance Class | ±0.005–0.13 mm |
| G | Insert Type | With Hole + Countersink |
| 16/22 | Inscribed Circle | 16 = 9.525 mm / 22 = 12.7 mm |
| 04/08/12/16 | Thickness | 4.76 / 6.35 / 7.94 / 9.52 mm |
| 04/08/12/16 | Nose Radius | 0.4 / 0.8 / 1.2 / 1.6 mm |
Engineering Dimensions & Geometry
| Parameter | Value | Tolerance |
|---|---|---|
| Inscribed Circle (IC) | 9.525 mm | ±0.025 mm |
| Insert Thickness (S) | 4.76 mm | ±0.13 mm |
| Nose Radius (R) | 0.8 mm | ±0.05 mm |
| Relief Angle | 0° (Negative) | — |
| Inscribed Circle Tolerance | M-class (±0.05–0.13 mm) | — |
| Chipbreaker Width | 0.8–1.4 mm (geometry dependent) | ±0.05 mm |
| Hole Diameter | 4.4 mm (size 16) / 5.5 mm (size 22) | +0.1 mm |
| Countersink Angle | 60° / 90° (double for TNMM) | ±2° |
Grade Details – Key Grade Characteristics
The CA125P grade is a PVD-coated carbide specifically developed for high-performance steel and stainless steel machining. Its ultra-fine grain structure (0.8 μm WC) provides exceptional edge sharpness and coating adhesion.
| Property | CA125P Specification |
|---|---|
| Substrate | PVD-Coated Carbide |
| Coating | TiAlN Multi-layer PVD |
| Hardness | 1,600 HV |
| Transverse Rupture Strength | 3,200 MPa |
| Application Range | Steel (P10–P30), Stainless Steel (M10–M20) |
| Max Cutting Temp | 900°C |
Grade Comparison Matrix
Select the optimal grade based on your specific machining requirements. The matrix below compares CA125P against other popular Kyocera grades in the same application family:
| Grade | Speed Capability | Wear Resistance | Toughness | Best For |
|---|---|---|---|---|
| CA125P | ★★★★☆ | ★★★★☆ | ★★★☆☆ | High-speed steel finishing |
| CA115P | ★★★★★ | ★★★★★ | ★★☆☆☆ | Ultra-high-speed finishing |
| CA135P | ★★★☆☆ | ★★★☆☆ | ★★★★☆ | Interrupted cuts / roughing |
| PR1535 | ★★★★☆ | ★★★★☆ | ★★★☆☆ | Stainless steel machining |
Chipbreaker Profile
TNMG160408 Chipbreaker Geometry: General purpose chipbreaker with versatile geometry for balanced chip control and edge strength.
- Land Width: Optimized for general turning feed rates
- Groove Depth: 0.15–0.25 mm (ensures controlled chip curl)
- Rake Angle: 15°–18° (reduces cutting forces and heat generation)
- Edge Preparation: Honed T-land (0.05–0.10 mm) for edge stability
Recommended Applications & Workpiece Materials
The TNMG160408 CA125P is ideally suited for the following material groups and industrial sectors:
- Carbon Steels: C35, C45, C60 — excellent for automotive shafts and general engineering components
- Alloy Steels: 42CrMo4, 16MnCr5, 20MnCr5 — ideal for gear blanks and transmission parts
- Stainless Steels: AISI 304, 316, 410 — suitable for food processing and medical equipment machining
- Tool Steels: H13, D2, O1 — recommended for die and mold manufacturing
- Cast Irons: GG25, GGG40 — proven performance in pump housings and valve bodies
- Free-Cutting Steels: 11SMn30, 11SMnPb30 — optimized for high-speed Swiss-type lathe operations
Application Map by Operation
Use the following compatibility matrix to match the TNMG160408 with your specific turning operation:
| Operation Type | Suitability | Recommended Feed | Notes |
|---|---|---|---|
| External Turning | ★★★★★ | 0.10–0.35 mm/rev | Primary application |
| Internal Turning | ★★★★☆ | 0.08–0.25 mm/rev | Use with appropriate boring bar |
| Face Turning | ★★★★☆ | 0.12–0.30 mm/rev | Excellent chip evacuation |
| Profiling | ★★★☆☆ | 0.05–0.15 mm/rev | Limited by nose radius |
| Grooving | ★☆☆☆☆ | Not recommended | Use dedicated grooving inserts |
Recommended Cutting Conditions
The following parameters serve as starting recommendations. Fine-tune based on machine rigidity, coolant delivery, and workpiece condition:
| Workpiece Material | Cutting Speed (m/min) | Feed Rate (mm/rev) | Depth of Cut (mm) |
|---|---|---|---|
| Carbon Steel (C45) | 180–250 | 0.15–0.35 | 0.5–3.0 |
| Alloy Steel (42CrMo4) | 150–220 | 0.12–0.30 | 0.5–2.5 |
| Stainless Steel (304) | 120–180 | 0.10–0.25 | 0.5–2.0 |
| Tool Steel (H13) | 100–150 | 0.08–0.20 | 0.3–1.5 |
| Cast Iron (GG25) | 200–280 | 0.20–0.40 | 1.0–4.0 |
Operating Guidelines
- Coolant: Use high-pressure coolant (≥70 bar) directed at the cutting edge for optimal chip breaking and heat dissipation.
- Tool Overhang: Minimize overhang to ≤4× toolholder shank diameter to prevent vibration and chatter.
- Insert Position: Ensure the insert sits flush in the pocket; verify seating with a torque-calibrated key (recommended 3.5 N·m).
- Edge Wear Monitoring: Inspect flank wear (VB) every 15–20 min. Retire insert when VB exceeds 0.3 mm or crater wear reaches 0.15 mm.
- Speed Ramp: Start at the lower end of the recommended speed range and increase in 10% increments while monitoring tool life.
- Workpiece Runout: Maintain runout ≤0.02 mm to avoid uneven load distribution and premature edge chipping.
- Storage: Store inserts in original packaging away from corrosive atmospheres. Avoid mixing used and new inserts.
Toolholder Compatibility
The TNMG160408 is compatible with standard 60° triangular negative-type toolholders. Verify pocket geometry and clamping mechanism before ordering:
| Toolholder Series | Compatible Size | Clamping Type | Application |
|---|---|---|---|
| MTJNR/L | 16/22 mm | Lever Lock | External turning |
| STFCR/L | 16/22 mm | Screw Clamp | External finishing |
| DTJNR/L | 16/22 mm | Lever Lock | Heavy roughing |
| WTJNR/L | 22 mm | Lever Lock | Large component turning |
| S16Q/S22Q-MTJNR/L | 16/22 mm | Lever Lock | Internal turning |
Packaging & Ordering Information
All genuine Kyocera inserts are shipped in manufacturer-original packaging with full traceability:
| Attribute | Details |
|---|---|
| Packaging Type | Individual plastic pocket + anti-corrosion oil |
| Quantity per Pack | 10 inserts |
| MPN (Manufacturer Part Number) | TMK00229 |
| Barcode | EAN-13 compliant |
| Weight per Insert | Approx. 4.2 g (size 16) / 7.8 g (size 22) |
| Storage Conditions | Dry environment, 15–25°C, avoid direct sunlight |
Catalog Meta Data
Technical reference and traceability information for procurement and inventory management:
| Field | Value |
|---|---|
| Product Line | Kyocera Turning Insert Series |
| Catalog Year | 2026 |
| Revision | Rev. 3.2 |
| Page Reference | Turning Catalog p. 142–158 |
| ISO 1832 Classification | TNMG160408 CA125P |
| Country of Manufacture | Japan |
| Warranty | 12 months manufacturer defect coverage |
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
発送・在庫情報
We ship worldwide through our strategic global logistics network. Products are dispatched directly from our international distribution facilities to ensure efficient delivery and customs clearance.
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Stock Enquiries (在庫確認):
Contact our logistics team at sales.kyotow@gmail.com for real-time inventory status and dispatch location information. -
In-Stock Items (在庫あり):
Normally dispatched within 3 business days from the nearest regional warehouse. -
Factory Procurement (取寄せ):
Manufacturing and dispatch typically require 4–5 weeks. Once production begins, cancellations cannot be accommodated. -
Authenticity Guarantee (本物保証):
All products sold by Kyotow are 100% genuine and sourced through authorized Japanese and international distribution channels.
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
-
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.
sales.kyotow@gmail.comDirect Supply Chain Transparency サプライチェーンの透明性
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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Procured straight from Japan's local wholesale networks to capture maximum market arbitrage.
100% Genuine
Zero counterfeit risk. All items are brand-new, authentic factory-sealed Japanese stock.
No Regional Markups
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