Kyocera 1/2 ENDMILL 5FL 0.010R TA SGS38839
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS38839
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Product Overview
The Kyocera 1/2 ENDMILL 5FL 0.010R TA SGS38839 is a premium solid carbide endmill engineered for precision CNC milling operations. Featuring a 1/2 inch (12.7 mm) cutting diameter, five-flute configuration, and a 0.010 inch corner radius, this tool delivers excellent surface finish, dimensional accuracy, and long tool life in demanding machining environments. The optimized flute geometry and advanced TA coating reduce cutting forces, improve chip evacuation, and minimize built-up edge when machining steels, stainless steels, cast irons, and other common engineering materials. Built to Kyocera's stringent quality standards, the SGS38839 is ideal for finishing, semi-finishing, profiling, and light roughing applications in aerospace, automotive, mold and die, and general manufacturing sectors.
ISO Designation Breakdown
| ISO Designation | SGS38839 |
| Tool Type | Solid Carbide Endmill, 5 Flutes |
| Size | 1/2 inch (12.7 mm) Diameter, 0.010R Corner Radius |
| Grade Class | TA (PVD TiAlN Coated Carbide) |
| Manufacturer Code | Kyocera SGS38839 |
Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
| Cutting Diameter (DC) | 12.7 mm (1/2 inch) | h6 |
| Corner Radius (CR) | 0.254 mm (0.010 inch) | ±0.013 mm |
| Shank Diameter (DCON) | 12.7 mm (1/2 inch) | h6 |
| Overall Length (OAL) | 75 mm (3 inch) | ±1.0 mm |
| Flute Length (APMX) | 32 mm (1.26 inch) | ±0.5 mm |
| Number of Flutes | 5 | - |
| Helix Angle | 38° | ±1.5° |
| Core Diameter | 7.62 mm (0.30 inch) | ±0.1 mm |
| Corner Radius Tolerance | 0.254 mm | +0.000 / -0.013 mm |
Grade Details - TA Carbide Substrate
The TA grade combines a fine-grain cemented carbide substrate with a PVD TiAlN (titanium aluminum nitride) coating. This combination provides high hardness, excellent thermal stability, and superior abrasion resistance at elevated cutting temperatures. The TA grade is specifically formulated for machining ferrous materials and delivers extended tool life, reduced flank wear, and reliable performance in high-speed machining applications.
| Coating | PVD TiAlN (TA), Multi-layer, Gold-Bronze Appearance |
| Substrate Hardness | 1,600 HV (91.5 HRA) |
| Coating Hardness | 3,200 HV |
| Carbide Grain Size | 0.8 µm (fine grain) |
| Rupture Strength (TRS) | 3,800 MPa |
| Key Performance | High wear resistance, thermal shock resistance, low friction coefficient |
Grade Comparison Matrix
| Grade | Wear Resistance | Heat Resistance | Toughness | Best For |
|---|---|---|---|---|
| TA (TiAlN) | ★★★★☆ | ★★★★★ | ★★★☆☆ | Steel, Stainless Steel, High-Temp Alloys |
| A (Uncoated) | ★★☆☆☆ | ★★☆☆☆ | ★★★★☆ | Non-ferrous, Aluminum, General Machining |
| PR (AlCrN) | ★★★★★ | ★★★★☆ | ★★★★☆ | Hardened Steel, Die & Mold, Titanium |
Chipbreaker & Flute Profile
The five-flute geometry is engineered with a variable helix and optimized core-to-diameter ratio to suppress chatter and promote smooth chip evacuation. The 0.010R corner radius improves cutter strength while maintaining fine surface finish, and the rake/flank face configuration is optimized for medium to high-speed machining of ferrous materials.
- Five continuous flutes with variable pitch for reduced harmonic vibration
- Optimized rake angle for efficient shearing and controlled chip formation
- Strong corner radius design for improved edge durability
- Polished flute surfaces to minimize chip adhesion and built-up edge
- Center-cutting capable for plunging and ramping operations
Recommended Applications & Workpiece Materials
| Material Group | Machinability | Recommended |
|---|---|---|
| Carbon Steel (P1, P2, P3) | Good | ✓ Yes |
| Alloy Steel (P4, P5) | Moderate | ✓ Yes |
| Stainless Steel (M1, M2) | Moderate | ✓ Yes |
| Cast Iron (K1, K2) | Good | ✓ Yes |
| Aluminum Alloys (N1, N2) | Excellent | ○ Limited |
| Titanium Alloys (S1) | Difficult | △ With Caution |
| Heat-Resistant Superalloys (S2) | Difficult | △ With Caution |
Application Map by Operation
| Operation | Suitability | Notes |
|---|---|---|
| Roughing | ★★★☆☆ | Light-to-medium roughing at reduced Ae/Rd |
| Semi-Finishing | ★★★★☆ | Excellent balance of material removal and finish |
| Finishing | ★★★★★ | Ideal for high-speed finish milling |
| Slotting | ★★★☆☆ | Full-width slotting at conservative feed |
| Profiling | ★★★★★ | Superior wall finish and dimensional accuracy |
| Pocketing | ★★★★☆ | Efficient chip evacuation in enclosed pockets |
| Ramping | ★★★☆☆ | Center-cutting geometry supports ramping |
| Plunging | ★★☆☆☆ | Use peck cycle for deeper plunging |
Recommended Cutting Conditions
Values are starting recommendations for stable setups with short overhang. Adjust based on machine rigidity, workpiece condition, and surface finish requirements.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed Rate fn (mm/tooth) | Coolant |
|---|---|---|---|
| Carbon Steel | 150 - 220 | 0.06 - 0.12 | Emulsion / Air Blast |
| Alloy Steel | 120 - 180 | 0.05 - 0.10 | Emulsion Recommended |
| Stainless Steel | 80 - 140 | 0.04 - 0.09 | High-Pressure Coolant |
| Cast Iron | 120 - 180 | 0.08 - 0.15 | Air Blast / Minimal |
| Aluminum | 250 - 400 | 0.10 - 0.20 | Air Blast / Mist |
| Titanium | 40 - 70 | 0.03 - 0.07 | High-Volume Coolant |
Operating Guidelines
- Runout: Maintain total indicator runout below 0.010 mm at the tool tip for best surface finish and balanced tool life.
- Peck Cycle: When plunging or drilling with the endmill, use a peck depth of 0.5 to 1.0 times the diameter and retract to break chips.
- Coolant: Apply adequate coolant or air blast to control heat; use high-pressure coolant for stainless steel and titanium.
- Entry Angle: Use helical or ramp entry with an angle of 1° to 3° to avoid full-width impact and extend corner life.
- Speed/Feed: Start at the lower end of the recommended range and increase gradually while monitoring spindle load and surface finish.
- Tool Life: Inspect flank wear regularly; regrind or replace when wear land exceeds 0.15 mm or when finish quality degrades.
Toolholder Compatibility
| Holder Type | Compatibility | Notes |
|---|---|---|
| ER Collet Chuck | ★★★☆☆ | Use precision ER25/ER32 collet, max 0.010 mm runout |
| Side-Lock Endmill Holder | ★★★★☆ | Secure grip for general milling; verify holder balance |
| Milling Chuck | ★★★★★ | Best for high-speed finishing and rigidity |
| Hydraulic Holder | ★★★★★ | Excellent damping and runout control |
| Shrink Fit Holder | ★★★★★ | Optimal for high-speed and high-precision work |
Packaging & Ordering Information
| MPN | SGS38839 |
| Quantity | 1 piece per package |
| Packaging Type | Protective plastic tube with foam insert |
| Label Info | Kyocera SGS38839, 1/2 ENDMILL 5FL 0.010R TA, barcode |
| Minimum Order | 1 piece |
| Warranty | Manufacturer's standard warranty against defects in material and workmanship |
Catalog Meta Data
| Catalog Volume | Kyocera Precision Tools Milling Catalog |
| Page Reference | Solid Carbide Endmills, Series 38 |
| Product Family | Solid Carbide Endmills |
| Series Designation | SGS Series, 5-Flute Radius |
| Country of Manufacture | Japan |
| Quality Standard | ISO 9001 Certified Manufacturing |
✓ 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.
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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.
