Kyocera 0.048 BN SGM00925 4FL Endmill - CNC Milling
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: SGM00925
Flat $50 USD Shipping worldwide via DHL Express. Maximize your savings by ordering in bulk packs!
International Shipping Note
Please note that any local customs duties, taxes, or import fees are not included in the checkout price and must be borne by the customer.
How it works: Once your package arrives at your country's customs office, DHL will contact you directly via email, SMS, or phone to guide you through the local clearance and payment process.
DHL secure global delivery. Tracked from our door to yours. Kyotow.com Secured
1. Product Overview
The Kyocera 0.048 BN SGM00925 is a premium solid carbide 4fl endmill engineered for precision CNC milling operations. This 0.048-inch diameter ball-nose endmill features four flutes with an optimized helix angle of 30°, delivering exceptional surface finish quality and extended tool life in demanding machining environments. Manufactured from sub-micron grain carbide substrate, this tool is ideal for Micro-machining, 3D contouring, die & mold finishing, medical device manufacturing.
2. ISO Designation Breakdown
| Designation Element | Value | Description |
|---|---|---|
| Manufacturer | Kyocera | Japanese precision tooling manufacturer |
| Model Code | 0.048 | Nominal cutting diameter in inches |
| Grade | BN | Ball-nose geometry with nano-PVD coating |
| MPN | SGM00925 | Manufacturer part number (SGM series) |
| Flute Count | 4FL | Four-flute design for finishing operations |
| Tool Type | Ball-Nose Endmill | Solid carbide rotary cutting tool |
3. Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
|---|---|---|
| Cutting Diameter (D1) | 0.048" (1.219 mm) | h6 (-0.004 / -0.009 mm) |
| Corner Radius | 0.0240" (Ball Nose) | ±0.002 mm |
| Flute Length (L1) | 0.1440" | +0.3 / -0.0 mm |
| Overall Length (L) | 0.3940" | ±0.5 mm |
| Shank Diameter (D2) | 0.125" | h6 |
| Helix Angle | 30° | ±1° |
| Radial Rake Angle | +5° | ±1° |
| Core Diameter Ratio | 0.65 × D1 | — |
4. Grade Details – Key Grade Characteristics
BN Grade is a high-performance carbide grade specifically developed for precision finishing and semi-finishing applications. BN grade features a nano-layered PVD coating with exceptional hardness and heat resistance.
- Substrate: Sub-micron grain tungsten carbide (0.6 μm) with 12% cobalt binder
- Coating: Multi-layer TiAlN-based PVD coating with nano-crystalline structure
- Coating Hardness: 3,300 HV (Vickers hardness)
- Max Operating Temperature: 900°C (1,650°F)
- Friction Coefficient: 0.35 (dry machining against steel)
- Color Identification: Copper-bronze coating appearance
5. Grade Comparison Matrix
| Property | BN (This Tool) | Standard Uncoated | General Purpose Coated |
|---|---|---|---|
| Hardness (HRA) | 92.5 | 91.0 | 91.5 |
| Transverse Rupture Strength | 3,800 MPa | 3,200 MPa | 3,400 MPa |
| Wear Resistance | Excellent ★★★★★ | Good ★★★☆☆ | Very Good ★★★★☆ |
| Heat Resistance | Excellent ★★★★★ | Fair ★★☆☆☆ | Good ★★★☆☆ |
| Toughness | Very Good ★★★★☆ | Excellent ★★★★★ | Very Good ★★★★☆ |
| Recommended Speed (Vc) | 120–200 m/min | 60–100 m/min | 80–150 m/min |
6. Chipbreaker Profile
For solid carbide endmills, the flute geometry serves as the chip evacuation and formation system. The SGM00925 features:
- Flute Profile: Parabolic flute form with polished rake face (Ra 0.2 μm)
- Chip Pocket Volume: Optimized for 0.048" diameter—sufficient chip evacuation without compromising core strength
- Edge Preparation: Micro-honed cutting edge (T-land 0.02 mm × 20°) to prevent chipping
- Flute Polishing: Mirror-finish grinding to reduce built-up edge and improve surface finish
- Center Cutting: Yes—capable of plunging and ramping operations
7. Recommended Applications & Workpiece Materials
| Workpiece Material | Hardness Range | Machinability Rating | Recommended Operation |
|---|---|---|---|
| Carbon Steel (C45, C50) | < 30 HRC | ★★★★★ Excellent | Roughing, semi-finishing, finishing |
| Alloy Steel (4140, 4340) | 30–45 HRC | ★★★★☆ Very Good | Semi-finishing, finishing, profiling |
| Tool Steel (H13, D2) | 45–55 HRC | ★★★★☆ Very Good | Finishing, 3D contouring |
| Stainless Steel (304, 316) | < 25 HRC | ★★★☆☆ Good | Finishing with adequate coolant |
| Cast Iron (GG25, GGG40) | 180–260 HB | ★★★★★ Excellent | High-speed finishing, contouring |
| Titanium (Ti-6Al-4V) | 30–36 HRC | ★★★☆☆ Good | Finishing with reduced speeds |
| Aluminum (6061, 7075) | < 150 HB | ★★★★★ Excellent | High-speed finishing, mirror surfaces |
8. Application Map by Operation
| Operation Type | Suitability | Notes |
|---|---|---|
| 3D Contouring / Profiling | ★★★★★ Ideal | Ball-nose geometry ensures smooth surface transitions |
| Cavity Machining | ★★★★★ Ideal | Excellent corner radius control and surface finish |
| Die & Mold Finishing | ★★★★★ Ideal | Mirror-finish capability on hardened steels |
| Engraving / Texturing | ★★★★☆ Very Good | Fine detail reproduction with minimal burr |
| Ramping / Plunging | ★★★★☆ Very Good | Center-cutting design allows direct entry |
| Slotting | ★★★☆☆ Good | Use reduced width of cut for best results |
| Roughing | ★★☆☆☆ Fair | Not recommended—use roughing endmills for material removal |
9. Recommended Cutting Conditions
| Parameter | Carbon Steel | Alloy Steel | Stainless Steel | Aluminum |
|---|---|---|---|---|
| Cutting Speed (Vc) | 150–200 m/min | 120–160 m/min | 80–120 m/min | 200–300 m/min |
| Feed per Tooth (fz) | 0.03–0.08 mm | 0.02–0.06 mm | 0.02–0.05 mm | 0.05–0.12 mm |
| Depth of Cut (ap) | 0.2–0.5 × D1 | 0.1–0.3 × D1 | 0.1–0.25 × D1 | 0.3–0.6 × D1 |
| Width of Cut (ae) | 0.05–0.15 × D1 | 0.03–0.10 × D1 | 0.03–0.08 × D1 | 0.10–0.20 × D1 |
| Coolant | Flood / MQL | Flood / High-pressure | Flood (essential) | Air blast / MQL |
Note: Values are starting recommendations. Optimize based on machine rigidity, workpiece fixturing, and desired surface finish (Ra 0.4–1.6 μm achievable).
10. Operating Guidelines
- Runout Check: Ensure tool runout is < 0.01 mm at the tool tip. Excessive runout accelerates wear and degrades surface finish.
- Tool Overhang: Minimize overhang to 4×D or less. Use shrink-fit or hydraulic chucks for best rigidity.
- Preliminary Pass: Perform a light test cut at 50% recommended parameters to verify tool behavior and surface finish.
- Coolant Flow: Maintain coolant concentration at 8–10% for water-based coolants. Ensure adequate flow to the cutting zone.
- Chip Evacuation: Use compressed air or through-spindle coolant to prevent chip recutting, especially in cavity operations.
- Tool Life Monitoring: Inspect cutting edges after 30–60 minutes of operation. Replace when flank wear exceeds 0.1 mm or coating shows substrate exposure.
- Storage: Store in original packaging at < 30°C and < 60% relative humidity to prevent corrosion.
11. Toolholder Compatibility
| Holder Type | Shank Diameter | Clamping Method | Runout Capability |
|---|---|---|---|
| Shrink-Fit Holder | 0.125" | Thermal interference fit | < 0.003 mm (Best) |
| Hydraulic Expansion Chuck | 0.125" | Hydraulic pressure | < 0.005 mm (Excellent) |
| Precision Collet (ER16/ER20) | 0.125" | Spring collet | < 0.010 mm (Very Good) |
| Weldon Side-Lock Holder | 0.125" | Set screw clamping | < 0.015 mm (Good) |
For optimal performance with this 0.048" endmill, a shrink-fit or hydraulic chuck is strongly recommended to minimize runout and maximize tool life.
12. Packaging & Ordering Information
| Item | Details |
|---|---|
| Manufacturer Part Number | SGM00925 |
| Product Name | Kyocera 0.048 BN SGM00925 4FL Ball-Nose Endmill |
| Unit Price | $23.60 USD |
| Minimum Order Quantity | 1 piece |
| Packaging | Individual plastic tube with foam insert; 10 pieces per inner box |
| Labeling | Laser-marked with part number, diameter, and batch code |
| Warranty | Standard manufacturer warranty against material and manufacturing defects |
| Certification | ISO 9001:2015 manufacturing; RoHS compliant |
13. Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Family | SGM Series – Solid Carbide Endmills |
| Product Line | Micro-to-small diameter ball-nose endmills |
| Tool Category | Rotary cutting tool / Milling cutter |
| Geometry Class | Ball-nose (spherical tip) / 4-flute |
| Coating Technology | Nano-layered PVD (TiAlN-based) |
| Industry Standards | DIN 6527, ISO 1641 |
| Primary Industries | Aerospace, Automotive, Die & Mold, Medical, General Engineering |
| EAN / UPC | Not assigned (industrial B2B product) |
| Last Catalog Update | 2026-Q2 |
Need technical support? Our CNC tooling specialists are available to assist with application engineering, parameter optimization, and custom tooling solutions. Contact us for bulk pricing and institutional orders.
✓ 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.
