Kyocera Z4U PR1705 CEM03657 ENDMILL - Universal Milling
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: CEM03657
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Product Overview
The Z4U CEM03657 is a premium-grade solid carbide 4-flute universal square endmill engineered by Kyocera for demanding CNC machining environments. Featuring a PVD DLC coating on an nano-carbide substrate, this tool delivers exceptional wear resistance and thermal stability. Designed for general shoulder milling, slotting, profiling, ramping up to 3°, helical interpolation for hole making, it ensures mirror-finish surface quality and extended tool life even under aggressive cutting conditions.
ISO Designation Breakdown
| ISO Symbol | Parameter | Value |
| E | Tool Category | Endmill (Solid Carbide) |
| 0200 | Nominal Diameter | 2.0 mm |
| 0050 | Effective Cutting Length | 5.0 mm |
| Z | Series Designator | Z4U Family |
| 4S | Flute Count & Style | 4 Flutes, Square |
Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
| Cutting Diameter (D1) | 2.0 mm | h6 (-0.000 to -0.009 mm) |
| Flute Length (L2) | 5.0 mm | +0.3 / -0.0 mm |
| Overall Length (L1) | 50-75 mm | +0.5 / -0.0 mm |
| Shank Diameter (D2) | 3.0 mm | h6 |
| Corner Radius | Sharp Corner | ±0.01 mm |
| Helix Angle | 35° | ±1.0° |
| Core Diameter | 1.20 mm | ±0.05 mm |
| Neck Diameter | 2.00 mm | h7 |
Grade Details - Key Grade Characteristics
PR1705 is a PVD DLC-coated grade built on nano-carbide substrate technology.
| Property | Value | Performance Impact |
| Hardness | 93.0 HRA | Superior wear resistance in continuous cutting |
| Coating Color | Black-Grey | Visual wear indicator for tool change planning |
| Max Operating Temp | 700°C | Stable performance in dry & high-speed machining |
| Transverse Rupture Strength | 3,200 MPa | High edge stability under intermittent cuts |
| Coating Thickness | 2.5-4.0 μm | Optimal balance of toughness & heat insulation |
Grade Comparison Matrix
| Grade | Coating | Hardness | Best For | Speed vs Life |
| PR1705 | PVD DLC | 93.0 HRA | Hardened Steel >50HRC | Balanced |
| PR1225 | PVD TiAlN | 92.0 HRA | Light finishing, high speed | Speed ++ |
| CA6535 | CVD TiCN+Al2O3 | 91.5 HRA | Heavy roughing, cast iron | Life ++ |
| PR1705 | PVD DLC | 93.0 HRA | Hardened steel >50 HRC | Precision ++ |
Chipbreaker Profile
The Z4U series features a precision-ground chipbreaker geometry optimized for 4-flute operation. The rake face is polished to Ra 0.2 μm to minimize built-up edge and ensure smooth chip evacuation. The flute gullet volume is designed for 2.0 mm diameter with a core thickness ratio of 0.60, providing maximum rigidity while maintaining adequate chip pocket space for Hardened Steel >50HRC applications.
| Geometry Parameter | Value | Function |
| Rake Angle (γ) | 8° | Reduces cutting force, improves surface finish |
| Relief Angle (α) | 12° | Prevents rubbing, reduces flank wear |
| Helix Angle | 35° | Ensures gradual engagement, reduces chatter |
| Gullet Radius | 0.50 mm | Optimizes chip curling and evacuation |
Recommended Applications & Workpiece Materials
This tool is optimized for the following material groups and machining scenarios:
- Primary Materials: Hardened Steel >50HRC
- Secondary Materials: Tool steel, Mild steel, Free-cutting steel, Brass
- Hardness Range: Up to 50 HRC
- Ideal Operations: General shoulder milling, slotting, profiling, ramping up to 3°, helical interpolation for hole making
Application Map by Operation
| Operation | Suitability | Recommended Ae | Notes |
| Slotting | ★★★★☆ | 0.5 × D1 | Full slot capable with reduced Ap |
| Profiling | ★★★★★ | 0.3-0.8 × D1 | Excellent wall finish quality |
| Ramping | ★★★★☆ | 0.2 × D1 | Max ramp angle 3° recommended |
| Plunging | ★★★☆☆ | 0.1 × D1 | Not center-cutting; use helical entry |
| 3D Contouring | ★★★☆☆ | 0.05-0.15 × D1 | Use ball-end for complex 3D surfaces |
Recommended Cutting Conditions
| Material | Vc (m/min) | Fz (mm/tooth) | Ap (mm) | Ae (mm) |
| Carbon Steel (S45C) | 80 | 0.08 | 2.0 | 1.0 |
| Stainless Steel (SUS304) | 60 | 0.06 | 1.6 | 0.6 |
| Cast Iron (FC250) | 80 | 0.1 | 3.0 | 1.6 |
| Hardened Steel (50HRC) | 40 | 0.03 | 0.4 | 0.2 |
Values are starting recommendations. Adjust based on machine rigidity, coolant delivery, and workpiece fixturing.
Operating Guidelines
- Runout Tolerance: Keep tool runout below 0.01 mm at the cutting edge to prevent uneven wear and chatter.
- Coolant: Use water-soluble coolant at 6-8% concentration for steel and cast iron. For aluminum with TBK grades, use air blast or mist to prevent built-up edge.
- Entry Strategy: Use helical or ramp entry at 1.5°-3° angle. Avoid direct plunging unless using a center-cutting variant.
- Depth of Cut: Do not exceed 2.0×D1 in full slotting to prevent deflection and breakage.
- Speed Ramp: Start at 70% of recommended Vc for the first 10 minutes, then increase to 100% once wear pattern stabilizes.
- Tool Change: Monitor flank wear (VB). Replace when VB exceeds 0.15 mm for roughing or 0.08 mm for finishing.
Toolholder Compatibility
For optimal performance and safety, pair this endmill with the following holder systems:
| Holder Type | Taper / Interface | Collet Size | Runout |
| ER Spring Collet Chuck | BT30 / BT40 / BT50 | ER16 | ≤ 0.015 mm |
| Hydraulic Expansion Holder | HSK-A63 / HSK-A100 | 2.0 mm | ≤ 0.005 mm |
| Shrink Fit Holder | HSK-E50 / HSK-A63 | 2.0 mm | ≤ 0.003 mm |
| Milling Chuck | BT40 / BT50 | 2.0 mm | ≤ 0.010 mm |
Packaging & Ordering Information
- Unit Packaging: Individual plastic tube with wax coating, 20 pcs per master carton, serial number etched
- Minimum Order: 1 piece (no MOQ for standard stock items)
- Lead Time: In-stock items ship within 24-48 hours. Non-stock: 4-6 weeks ex-factory Japan.
- Storage: Store in original packaging at 15-25°C, humidity <60% RH. Avoid direct sunlight.
- Inspection Certificate: Available upon request (ISO 9001 traceability, dimensional report, coating batch).
Catalog Meta Data
| Attribute | Value |
| Kyocera Catalog Page | 2026 General Catalog, Section 3.2, Page 176 |
| Batch / Serial Number | KY-2026-14930 |
| Manufacturing Origin | Japan |
| Quality Standard | ISO 9001:2015, JIS B 4054 |
| ECCN / Export Code | EAR99, 1A999.a |
| Harmonized Code | 8207.70.60 |
| Warranty | 12 months from date of purchase against manufacturing defects |
✓ 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.
-
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.
安全な決済方法
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All international payments are securely processed through PayPal, ensuring maximum transaction security and customer protection.
国際スピード郵便
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✓ Flat Worldwide Shipping Rate: USD $50
Orders are shipped through our DHL Express corporate account from distribution facilities across Asia, Europe, and China for reliable international delivery.
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。
Domestic Sourced
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
We bypass Western corporate sales teams and localized regional overhead costs entirely.
