Kyocera 1/2 ENDMILL 4FL BN TC SGS39640
For your absolute peace of mind, all transactions are processed through and secured by PayPal. Your purchase is fully covered by PayPal Buyer Protection, ensuring secure data encryption and trusted dispute resolution.
安心の決済保護：すべてのお手続きはPayPalを介して安全に暗号化され、バイヤープロテクション（購入者保護）が適用されます。
- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS39640
DHL secure global delivery. Tracked from our door to yours. Kyotow.com Secured
1. Product Overview
The Kyocera SGS39640 is a precision solid-carbide ball-nose endmill with a 1/2 inch cutting diameter, four flutes, and a wear-resistant PVD coating. It is designed for high-accuracy 3D profiling, finishing, and contouring on CNC machining centres.
2. ISO Designation Breakdown
| Code | Interpretation |
| SGS | Kyocera solid carbide endmill product series |
| 39640 | Item number / dimension identifier |
| 1/2 | Nominal cutting diameter (12.7 mm) |
| 4FL | Four flutes |
| BN | Ball-nose corner geometry |
| TC | Tungsten carbide substrate |
3. Engineering Dimensions & Geometry
| Parameter | Value |
| Cutting diameter (DC) | 12.7 mm / 0.500 in |
| Corner radius | Ball nose R = 6.35 mm |
| Shank diameter (DCON) | 12.7 mm / 0.500 in |
| Overall length (OAL) | Typical 75 mm (verify with factory print) |
| Flute length (APMX) | ~25 mm (nominal) |
| Number of flutes | 4 |
| Helix angle | 30°–35° |
| Tolerance | h6 shank |
4. Grade Details & Characteristics
- Micro-grain tungsten carbide substrate for high hardness and wear resistance
- Advanced PVD coating reduces friction and built-up edge
- High hot-hardness supports elevated cutting speeds
- Balanced edge strength for consistent finishing performance
5. Grade Comparison Matrix
| Grade / Material | Wear resistance | Toughness | Best use |
| SGS39640 coated carbide | Excellent | Good | Steel, stainless, cast iron finishing |
| Uncoated carbide | Good | Good | Non-ferrous, plastics |
| HSS-Co | Moderate | Very good | Low-speed prototyping |
| Cermet | Very good | Moderate | High-speed finishing of steel |
6. Chipbreaker Profile
As a 4-flute solid endmill, chip control is provided by the helical flute geometry and polished flute faces. The ball-nose tip has a continuous cutting edge that distributes chip load smoothly during 3D contouring.
7. Recommended Applications & Materials
| Material group | Suitability |
| Carbon and alloy steels (P) | Excellent for finishing and profiling |
| Stainless steels (M) | Good with appropriate speeds/feeds |
| Cast iron (K) | Good |
| Hardened steels up to ~55 HRC (H) | Limited / light finishing |
| Titanium and superalloys (S) | Fair - reduce speed and engagement |
8. Application Map by Operation
| Operation | Rating |
| 3D profiling / contouring | Excellent |
| Finishing | Excellent |
| Semi-finishing | Good |
| Slotting | Limited |
| Plunging | Not recommended |
9. Recommended Cutting Conditions
Values are starting recommendations; optimise for machine, setup, and material.
| Material | Vc (m/min) | fz (mm/tooth) | ae / DC |
| Low-alloy steel | 120–180 | 0.05–0.10 | 0.05–0.15 |
| Stainless steel | 80–130 | 0.04–0.08 | 0.05–0.10 |
| Cast iron | 100–160 | 0.05–0.10 | 0.05–0.15 |
| Hardened steel | 60–100 | 0.02–0.05 | 0.02–0.08 |
10. Operating Guidelines
- Use a high-precision collet or shrink-fit holder with minimum run-out
- Ensure workpiece and fixture rigidity
- Prefer ramp or helical entry; avoid direct plunging with ball-nose tools
- Use adequate coolant or air blast for chip evacuation
- Inspect cutting edges after each shift; replace worn tools promptly
11. Toolholder Compatibility
Compatible with ER25, ER32 and ER40 collet chucks, shrink-fit holders, hydraulic chucks, and side-lock holders. Machine interfaces include CAT40, BT40, BT50 and HSK63A/100A spindles with appropriate collet size.
12. Packaging & Ordering Info
- Supplied in individual protective plastic tube or sleeve
- MPN: SGS39640
- Minimum order quantity: 1 piece
- Bulk and trade pricing available on request
13. Catalog Meta Data
| Field | Value |
| Product category | Industrial cutting tools / Solid carbide endmills |
| MPN | SGS39640 |
| Weight | 0.1 kg |
| Stock status | In stock |
| Warranty | Full manufacturer warranty |
✓ 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.
