Kyocera 25,0 ENDMILL 4FL BN SGS40186
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS40182
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1. Product Overview
The Kyocera 25,0 ENDMILL 4FL BN SGS40186 is a solid-carbide ball-nose end mill designed for precision 3D contouring, finishing and complex surface machining. The 25 mm spherical nose and four-flute construction provide smooth finishes, stable cutting action and long tool life in die & mould and aerospace components.
2. ISO Designation Breakdown
The part-code structure identifies the tool geometry and product series:
- 25,0 — nominal cutting diameter in millimetres (25 mm)
- ENDMILL — solid-carbide end-mill tool family
- 4FL — four flutes for semi-finishing and finishing
- BN — ball-nose end geometry (spherical tip)
- SGS40186 — Kyocera product / ordering code
3. Engineering Dimensions & Geometry
| Parameter | Value / Description |
| Cutting Diameter (D) | 25.0 mm |
| Number of Flutes | 4 |
| Corner Geometry | Ball Nose (spherical tip) |
| Shank Diameter | 25.0 mm (ISO h6 typical) |
| Overall Length | Per Kyocera SGS40186 specification |
| Helix Angle | Standard 30°–45° (grade dependent) |
| Coating | Advanced wear-resistant carbide grade coating |
4. Grade Details & Characteristics
Built on a premium sub-micrograin carbide substrate, the SGS40186 grade offers:
- High transverse rupture strength for finishing passes
- Excellent edge stability and heat resistance on 3D surfaces
- Advanced coating for reduced built-up edge and extended tool life
- Balanced hardness/toughness for steel and cast-iron finishing
5. Grade Comparison Matrix
| Variant | Corner | Best For |
| SGS40186 | Ball Nose | 3D contouring, finishing, die & mould |
| SGS40185 | Square | Slotting, profiling, 90° shoulder milling |
6. Chipbreaker Profile
The four-flute ball-nose geometry is engineered with a stable core and open flutes for efficient chip evacuation along curved surfaces. The cutting-edge design reduces chatter and ensures consistent surface finish during long finishing passes and high-speed contouring.
7. Recommended Applications & Materials
- Carbon and alloy steels
- Stainless steels (finishing and semi-finishing)
- Grey and nodular cast iron
- Hardened steels up to approx. 50–55 HRC (grade dependent)
- Die & mould, aerospace and complex component finishing
8. Application Map by Operation
| Operation | Suitability |
| 3D Contouring / Finishing | Excellent |
| Profile Milling | Excellent |
| Pocketing | Good (with appropriate step-over) |
| Slotting | Limited |
| Plunging | Not recommended |
9. Recommended Cutting Conditions
Starting parameters for a 25 mm four-flute ball-nose carbide end mill; adjust based on machine rigidity and material condition:
| Material | Vc (m/min) | fz (mm/tooth) |
| Mild / Low-Carbon Steel | 120–180 | 0.06–0.12 |
| Alloy Steel | 80–150 | 0.05–0.10 |
| Stainless Steel | 60–100 | 0.04–0.08 |
| Grey Cast Iron | 100–160 | 0.06–0.12 |
| Hardened Steel (50 HRC) | 40–80 | 0.02–0.06 |
10. Operating Guidelines
- Use minimum runout toolholding (≤0.01 mm) to protect cutting edges and maximise surface finish.
- Maintain a small step-over (typically 8–15 % of tool diameter) for finishing passes.
- Use high-speed contouring paths and avoid full-width engagement to reduce vibration.
- Apply appropriate coolant or compressed-air blast to clear chips and reduce thermal cycling.
- Verify spindle speed and feed calculations for the actual flute count and workpiece material.
11. Toolholder Compatibility
Compatible with standard high-precision milling toolholders:
- ER collet chucks (minimum TIR)
- Hydraulic expansion chucks
- Shrink-fit holders
- Milling chucks / high-torque holders
12. Packaging & Ordering Info
Supplied as a genuine Kyocera industrial cutting tool. Each unit is individually packaged with the manufacturer part number (MPN) SGS40186 clearly marked for traceability. Order by MPN for exact replacement.
13. Catalog Meta Data
| Attribute | Value |
| Manufacturer | Kyocera |
| MPN | SGS40186 |
| Product Family | Solid Carbide End Mill |
| Flutes | 4 |
| Corner Geometry | Ball Nose |
| Diameter | 25.0 mm |
✓ 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
✓ Encrypted Transactions
✓ Global Buyer Protection
✓ Safe International Payments
All international payments are securely processed through PayPal, ensuring maximum transaction security and customer protection.
国際スピード郵便
✓ Full Shipment Tracking
✓ Global Logistics Network
✓ 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.
