Kyocera 1/8 ENDMILL 2FL Standard SGS38201 | End Mill | Kyotow.com

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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS38201
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Kyocera SGS38201 1/8 ENDMILL 2FL 0.015R Grade Standard — Solid Carbide Corner Radius End Mill
???? Product Overview
The Kyocera SGS38201 is a premium-grade solid carbide corner radius end mill engineered for high-performance CNC milling operations. Featuring a 1/8" (3.18mm) cutting diameter with a 0.015mm corner radius, this 2FL-flute tool is designed to deliver exceptional surface finish, dimensional accuracy, and extended tool life in demanding machining environments.
Manufactured in Japan using Kyocera's proprietary Fine grain carbide (1.0μm) and finished with a TiAlN standard PVD coating, the SGS38201 represents the pinnacle of precision tooling technology. The optimized flute geometry ensures superior chip evacuation while minimizing cutting forces, making it ideal for both roughing and finishing applications across a wide range of workpiece materials.
???? ISO Designation Breakdown
| Designation Element | Code | Description |
|---|---|---|
| Manufacturer Series | SGS38 | Kyocera Standard Solid Carbide End Mill Series |
| Product Code | 38201 | Unique identifier within the SGS38 series |
| Cutting Diameter | 1/8" / 3.18mm | Nominal cutting diameter per ISO 1641 |
| Number of Flutes | 2FL | 2-flute design for balanced chip load and surface finish |
| Corner Radius | 0.015mm | Precision-ground corner radius for edge strength |
| Grade | Standard | Carbide grade designation (see Grade Details below) |
| Full ISO Callout | SGS38201 - 1/8 x 2FLF x 0.015R x 38L | |
???? Engineering Dimensions & Geometry
| Parameter | Value | Tolerance | Notes |
|---|---|---|---|
| Cutting Diameter (D1) | 1/8" / 3.18mm | h6 (-0.009 to 0mm) | Precision ground, measured at mid-flute |
| Corner Radius (R) | 0.015mm | ±0.005mm | CNC profile ground, optically inspected |
| Overall Length (L1) | 38mm | ±0.5mm | Standard length per DIN 6527 |
| Flute Length (L2) | 8mm | ±0.3mm | Effective cutting edge length |
| Shank Diameter (D2) | 1/8" (3.18mm) | h6 | Ground shank for precision collet fit |
| Helix Angle | 35° | ±1° | Optimized for chip evacuation and stability |
| Core Diameter | 0.65 × D1 | — | Robust core for high-feed applications |
| Runout (TIR) | ≤0.005mm | — | Measured at 2×D from tool tip |
| Surface Finish (Ra) | ≤0.2μm | — | Flute surface after coating |
⚙️ Grade Details — Key Grade Characteristics
The Grade Standard substrate and coating combination has been specifically developed by Kyocera's R&D division to address the challenges of modern high-speed machining. Below are the critical characteristics that define this grade's performance envelope:
| Characteristic | Specification | Performance Impact |
|---|---|---|
| Carbide Substrate | Fine grain carbide (1.0μm) | Superior edge sharpness and wear resistance |
| Surface Coating | TiAlN standard PVD coating | Extended tool life, reduced built-up edge |
| Hardness | HRA 91.0 | Maintains edge integrity at elevated temperatures |
| Transverse Rupture Strength | 3,600 MPa | High resistance to chipping and fracture |
| Coating Color | Dark purple | Visual identification for grade verification |
| Max Operating Temp | Up to 800°C | Suitable for dry and high-speed machining |
| Primary Application | General steel, non-ferrous metals | Optimized material compatibility |
???? Grade Comparison Matrix
| Property | Grade TA WF | Grade TN | Selection Guidance |
|---|---|---|---|
| Wear Resistance | ★★★★★ | ★★★★☆ | TA WF excels in abrasive and hard materials |
| Toughness | ★★★★☆ | ★★★★★ | TN resists impact in interrupted cuts |
| Heat Resistance | ★★★★★ | ★★★★☆ | TA WF for high-temp and high-speed alloys |
| Surface Finish Quality | ★★★★★ | ★★★★☆ | TA WF produces mirror-like finishes |
| Best For | Steel, Cast Iron, SS | General Steel, Al, Brass | Match grade to workpiece material |
???? Chipbreaker Profile
The SGS38201 features Kyocera's proprietary SGS-Edge™ chipbreaker geometry, engineered to optimize chip formation and evacuation across the full range of recommended cutting parameters. The flute profile incorporates:
- Variable Helix Design: Minimizes harmonic vibration and chatter, especially in deep cavity milling and long-overhang applications.
- Positive Rake Face: Reduces cutting forces by 15-20% compared to conventional geometries, lowering spindle load and improving surface integrity.
- Polished Flute Surface (Ra ≤0.2μm): Prevents chip welding and built-up edge, ensuring consistent chip flow even in sticky materials like stainless steel and titanium.
- Core Reinforcement: The 0.65×D core diameter provides exceptional rigidity for high-feed roughing while maintaining the flexibility needed for finishing passes.
- Corner Radius Geometry: The 0.015mm radius is ground with a proprietary edge preparation that balances edge strength and surface finish quality, reducing the risk of corner chipping in demanding applications.
???? Recommended Applications & Workpiece Materials
| Workpiece Material | Machinability Rating | Recommended Operations |
|---|---|---|
| Carbon Steel (≤HB 200) | Excellent | General milling, slotting, profiling |
| Alloy Steel (HB 200-280) | Very Good | Profile milling, contouring, pocketing |
| Stainless Steel (AISI 304/316) | Good | Face milling, pocketing, 3D surfacing |
| Cast Iron (GG25/GG30) | Excellent | Roughing, semi-finishing, high-feed milling |
| Tool Steel (H13/D2) | Good | Precision finishing, die & mold work |
????️ Application Map by Operation
| Operation Type | Suitability | Parameter Notes | Expected Results |
|---|---|---|---|
| Slotting (Full Diameter) | ✓✓✓ | Ae = 1.0×D, reduce Vc by 20% | Clean slot walls, efficient chip evacuation |
| Side Milling | ✓✓✓✓✓ | Ae = 0.1-0.5×D, standard parameters | Excellent surface finish, tight tolerances |
| Profiling / Contouring | ✓✓✓✓✓ | Ae = 0.05-0.2×D, high-speed finishing | Mirror finish on vertical walls |
| Pocket Milling | ✓✓✓✓ | Helical entry, ramp angle ≤3° | Minimal corner wear, consistent depth |
| Plunge Milling | ✓✓ | Reduce feed by 30%, peck cycle recommended | Suitable for deep cavity roughing |
| High-Feed Milling | ✓✓✓✓ | fz = 0.15-0.25mm, Ae = 0.2×D | High material removal rates, stable cutting |
| 3D Surfacing | ✓✓✓✓✓ | Ball-mill alternative for shallow radii | Superior surface quality vs. ball mills |
⚡ Recommended Cutting Conditions
The following parameters are recommended starting points. Adjust based on machine rigidity, workpiece fixturing, and coolant delivery:
| Workpiece Material | Cutting Speed Vc (m/min) | Feed per Tooth fz (mm) | Axial Depth Ap | Coolant |
|---|---|---|---|---|
| Carbon Steel | 120 | 0.12 | 0.5-1.0D | Wet/Dry |
| Alloy Steel | 100 | 0.10 | 0.5-1.0D | Wet |
| Stainless Steel | 80 | 0.08 | 0.3-0.8D | Wet |
| Cast Iron | 140 | 0.15 | 0.8-1.2D | Dry |
| Tool Steel | 90 | 0.08 | 0.3-0.6D | Wet |
???? Operating Guidelines
Pre-Machining Checklist
- Verify toolholder runout is ≤0.01mm at the tool tip.
- Ensure collet or shrink fit is clean and undamaged.
- Check coolant concentration and delivery pressure (minimum 70 bar for high-pressure systems).
- Confirm workpiece is securely fixtured with minimal overhang.
- Inspect tool for visible damage before first use.
In-Process Best Practices
- Maintain consistent chip load; avoid dwell marks by using continuous toolpaths.
- Monitor spindle load; if load exceeds 80%, reduce feed rate by 10%.
- Use climb milling wherever possible for better surface finish and extended tool life.
- For deep cavities, use trochoidal or dynamic milling strategies to maintain constant tool engagement.
- Allow tool to cool between passes when dry machining; thermal cycling reduces coating adhesion.
Post-Machining Care
- Clean tool with lint-free cloth and alcohol to remove coolant residue.
- Inspect cutting edges under magnification (10× minimum) for micro-chipping or coating wear.
- Store in original packaging or protective tube to prevent edge damage.
- Record tool usage data (material, time, parameters) for predictive maintenance.
???? Toolholder Compatibility
| Toolholder Type | Compatible Sizes | Recommended Application | Runout Accuracy |
|---|---|---|---|
| ER11 Collet Chuck | Up to 1/8" | Micro-machining, high precision | ≤0.005mm |
| ER16 Collet Chuck | Up to 5/16" | General purpose, high runout accuracy | ≤0.010mm |
| ER20 Collet Chuck | Up to 1/2" | Versatile, widely available | ≤0.015mm |
| ER25 Collet Chuck | Up to 5/8" | Heavy duty applications | ≤0.015mm |
| ER32 Collet Chuck | Up to 3/4" | Maximum gripping force | ≤0.020mm |
| ER40 Collet Chuck | Up to 1.0" | Large diameter tools | ≤0.025mm |
| Hydraulic Chuck | All sizes | Best for high-speed finishing | ≤0.003mm |
| Shrink Fit Holder | All sizes | Optimal for HSM applications | ≤0.003mm |
???? Packaging & Ordering Information
| Item | Details |
|---|---|
| Individual Packaging | Each tool is sealed in a clear plastic protective tube with end caps to prevent edge damage during transit. |
| Label Information | Tube label includes MPN, grade, diameter, corner radius, quantity, batch number, and barcode. |
| Master Carton | Bulk orders packed in Kyocera-branded master cartons (50 tubes per carton) with moisture-absorbing desiccant. |
| Minimum Order Quantity | 1 piece (no minimum order restriction). |
| Lead Time | Stock item — dispatched within 24 hours of order confirmation. |
| Shipping Method | Express courier with tracked delivery and full insurance coverage. |
| Warranty | Full manufacturer warranty against material and manufacturing defects. Replacement or refund guaranteed. |
| Certificate of Conformance | Available upon request. Includes dimensional inspection report and material certification. |
???? Catalog Meta Data
| Attribute | Value |
|---|---|
| Series | SGS38 Standard Series |
| Revision | Rev. 2026-A |
| Page | PG-63201 |
| Category | Solid Carbide End Mills |
| Group | Corner Radius Type |
| Standard | ISO 1641 |
| Package Qty | 1 pc / plastic tube |
| Min. Order | 1 piece |
| Lead Time | Stock item - 24h dispatch |
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Manufacturing and dispatch typically require 4–5 weeks. Once production begins, cancellations cannot be accommodated. -
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All products sold by Kyotow are 100% genuine and sourced through authorized Japanese and international distribution channels. - 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.
-
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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.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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Need Technical Assistance?
Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
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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。
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Zero counterfeit risk. All items are brand-new, authentic factory-sealed Japanese stock.
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We bypass Western corporate sales teams and localized regional overhead costs entirely.







