Kyocera SGM04001 SQ TA 0.0040" 2FL Square Endmill - Micro Milling
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM04001
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Product Overview
The Kyocera SGM04001 is a premium 2FL square endmill engineered for step milling and shoulder machining in precision shafts and spindles. With a cutting diameter of 0.0040" (0.102 mm), this solid carbide tool features the advanced SQ TA coating system, delivering exceptional wear resistance and thermal stability in demanding machining environments.
Designed for high-speed CNC milling centers and micromachining applications, the SGM04001 combines optimized flute geometry with a 30° helix angle to ensure smooth chip evacuation and minimal cutting forces. The square profile with sharp 90° corners for precise slotting and shoulder milling enables accurate slotting, profiling, and face milling operations.
ISO Designation Breakdown
| Designation Element | Code | Description |
|---|---|---|
| Manufacturer Series | SGM | Kyocera Micro Endmill Series – Solid Carbide General Machining |
| Product Code | 04001 | Unique catalog identifier for 0.0040" diameter specification |
| Tool Type | ENDMILL | Endmill – peripheral and face milling capable |
| Flute Count | 2FL | 2 Flutes – balanced chip load distribution for finishing |
| Nose Geometry | SQ | Square End – 90° corner profile for slotting and profiling |
| Coating Grade | SQ TA | TiAlN-based nano-composite coating for high-temperature stability |
Engineering Dimensions & Geometry
| Parameter | Imperial | Metric | Tolerance |
|---|---|---|---|
| Cutting Diameter (D1) | 0.0040" | 0.102 mm | h6 |
| Corner Radius (R) | 0.001" | 0.025 mm | ±0.003 mm |
| Flute Length (L1) | 0.500" | 12.70 mm | +0.05/-0.00 mm |
| Overall Length (L) | 1.496" | 38 mm | ±0.50 mm |
| Shank Diameter (D2) | 0.125" | 3.175 mm | h6 |
| Helix Angle | — | 30° | ±1° |
| Number of Flutes | — | 2 | — |
| Core Diameter | 0.0024" | 0.061 mm | ±0.01 mm |
Grade Details – Key Grade Characteristics
The SQ TA grade represents Kyocera's advanced coating technology specifically developed for micro-endmill applications. TA coating demonstrates exceptional performance in high-speed machining above 20,000 RPM.
- Coating Composition: Nano-layered TiAlN with aluminum content optimized for thermal stability
- Coating Thickness: 2.5–3.0 μm total thickness with alternating layer period of 15–20 nm
- Substrate Material: Ultra-fine grain tungsten carbide (0.6 μm) with 12% cobalt binder
- Hardness: 3,300 HV (coating) / 1,650 HV (substrate)
- Friction Coefficient: 0.35 against steel, 0.40 against titanium alloys
- Oxidation Threshold: 900°C in ambient atmosphere, 1,050°C in inert gas
- Edge Preparation: Micro-honed radius of 3–5 μm for chipping resistance
- Surface Finish: Ra 0.15 μm on rake face, Ra 0.10 μm on flank face
Grade Comparison Matrix
| Property | SQ TA (This Tool) | Standard TiAlN | Uncoated Carbide |
|---|---|---|---|
| Hardness (HV) | 3,300 | 2,800 | 1,650 |
| Max Operating Temp | 900°C | 750°C | 500°C |
| Tool Life (Steel) | 100% (baseline) | 75% | 35% |
| Tool Life (Stainless) | 100% (baseline) | 70% | 30% |
| Tool Life (Titanium) | 100% (baseline) | 65% | 25% |
| Friction Coefficient | 0.35 | 0.45 | 0.60 |
| Recommended Vc (Steel) | 60.8 m/min | 48.6 m/min | 30.4 m/min |
Chipbreaker Profile
The {mpn} features a precision-ground square end geometry optimized for axial and radial cutting forces in slotting and profiling applications:
- Flute Profile: Straight-flute to moderate-helix design providing maximum core strength for full-slotting depths
- Rake Face Geometry: Positive rake angle of 10° on peripheral edges for efficient chip formation in slotting
- Chip Splitting Features: Alternating flute land widths creating natural chip segmentation and reduced cutting forces
- Helix Angle Effect: The {helix}° helix provides gradual entry into the workpiece, minimizing impact loads on entry
- Edge Conditioning: Sharp 90° corners with micro-honed edges (radius 2–3 μm) for clean shoulder profiles
- Flute Polishing: Mirror-finished flute surfaces (Ra ≤ 0.1 μm) prevent chip packing in deep slotting operations
Recommended Applications & Workpiece Materials
The SGM04001 with SQ TA coating is optimized for the following workpiece materials and application scenarios:
Primary Materials: Silicon-aluminum alloys and metal matrix composites
| Material Group | Hardness Range | Recommended Operation | Expected Tool Life |
|---|---|---|---|
| Carbon & Alloy Steels | < 45 HRC | 3D Finishing, Contouring | 120–180 min |
| Hardened Tool Steels | 45–55 HRC | Precision Finishing, Engraving | 80–120 min |
| Stainless Steels (Austenitic) | < 200 HB | Cavity Milling, Texturing | 60–90 min |
| Titanium Alloys | 30–38 HRC | Blade Root Forming, Profiling | 40–60 min |
| Nickel Superalloys | 35–45 HRC | Turbine Component Finishing | 30–50 min |
| Aluminum Alloys | < 150 HB | High-Speed 3D Surfacing | 200–300 min |
Application Map by Operation
| Operation Type | Suitability | Max Depth of Cut (ap) | Max Width of Cut (ae) | Notes |
|---|---|---|---|---|
| Slot Milling (Full Depth) | ★★★★★ Excellent | ≤ 0.0060" | = 0.0040" | Optimal for keyway and groove milling |
| Profile / Side Milling | ★★★★★ Excellent | ≤ 0.0060" | ≤ 0.0012" | Best for shoulder and step milling |
| Face Milling | ★★★★☆ Good | ≤ 0.0030" | ≤ 0.0032" | Light-duty face milling only |
| Plunge Milling | ★★★☆☆ Limited | ≤ 0.0012" | — | Square tip not designed for axial plunge |
| Trochoidal Milling | ★★★★★ Excellent | ≤ 0.0048" | ≤ 0.0007" | Excellent chip evacuation in slots |
| Engraving / Marking | ★★★☆☆ Limited | ≤ 0.0004" | ≤ 0.0002" | Use reduced depth for fine engraving |
| Pocket Milling | ★★★★☆ Good | ≤ 0.0060" | ≤ 0.0012" | Ideal for rectangular pocket clearing |
Recommended Cutting Conditions
Parameters below are starting recommendations. Optimize based on machine rigidity, workpiece fixturing, and surface finish requirements.
| Workpiece Material | Cutting Speed Vc | Feed per Tooth fz | Spindle Speed n | Depth of Cut ap | Width of Cut ae |
|---|---|---|---|---|---|
| Carbon Steel (< 45 HRC) | 60.8 m/min | 0.0052 mm/z | 190,484 RPM | ≤ 0.0060" | ≤ 0.0012" |
| Stainless Steel (304/316) | 40.6 m/min | 0.0042 mm/z | 127,198 RPM | ≤ 0.0048" | ≤ 0.0010" |
| Titanium (Ti-6Al-4V) | 25.4 m/min | 0.0031 mm/z | 79,577 RPM | ≤ 0.0030" | ≤ 0.0006" |
| Hardened Steel (45-55 HRC) | 36.5 m/min | 0.0026 mm/z | 114,290 RPM | ≤ 0.0018" | ≤ 0.0004" |
| Aluminum (7075/6061) | 121.6 m/min | 0.0104 mm/z | 380,968 RPM | ≤ 0.0072" | ≤ 0.0014" |
Operating Guidelines
- Runout Control: Maintain total indicated runout (TIR) below 0.01 mm at the tool tip. Excessive runout causes uneven wear and premature chipping on one flute.
- Coolant Strategy: For steels and stainless, use high-pressure coolant (70+ bar) directed at the cutting zone. For titanium, flood coolant is mandatory to prevent workpiece combustion.
- Entry Strategy: Always use ramp or helical entry; avoid direct 90° plunging except at reduced feed (25% of normal). Maximum recommended ramp angle is 3°.
- Stepover for Finishing: For mirror surface finishes, use stepover (ae) ≤ 10% of tool diameter (0.0004") with high spindle speeds.
- Chip Evacuation: Ensure adequate compressed air blast or coolant flow to prevent chip recutting, especially in deep cavity applications.
- Tool Overhang: Minimize overhang to L/D ≤ 4 for optimal stability. For L/D > 4, reduce cutting parameters by 20% and consider vibration-damping holders.
- Wear Monitoring: Inspect flank wear (VB) every 30 minutes. Retire tool when VB exceeds 0.05 mm (finishing) or 0.10 mm (roughing).
- Speed Ramp-Up: When starting a new job, begin at 70% of recommended Vc and increase in 10% increments while monitoring spindle load and surface finish.
- Workpiece Preparation: Ensure flat, perpendicular datum surfaces and secure fixturing. Vibration from loose workpieces is the primary cause of micro-endmill failure.
- Storage: Store in original packaging away from direct sunlight and humidity. Avoid contact between cutting edges and hard surfaces.
Toolholder Compatibility
Compatible with hydro-expansion chucks (Schunk Tendo) for highest gripping torque
| Holder Type | Gripping Diameter | Max RPM | Runout @ 3×D | Best For |
|---|---|---|---|---|
| ER Collet (ER11/ER16) | 1/8" (3.175 mm) | 30,000 RPM | ≤ 0.015 mm | General purpose, cost-effective |
| Shrink Fit | 1/8" (3.175 mm) | 50,000 RPM | ≤ 0.003 mm | High-speed finishing, tight tolerances |
| Hydraulic Chuck | 1/8" (3.175 mm) | 25,000 RPM | ≤ 0.005 mm | Heavy cuts, vibration damping |
| Micro-Milling Chuck | 3–4 mm | 60,000 RPM | ≤ 0.002 mm | Micro-machining, dental, electronics |
Packaging & Ordering Information
Supplied in presentation tin with foam cutout and certificate of conformance
| Item | Details |
|---|---|
| Minimum Order Quantity | 1 piece (no MOQ for standard items) |
| Lead Time | Stock item – ships within 24 hours of order confirmation |
| Shelf Life | 36 months from date of manufacture when stored in original packaging at 15–25°C, <60% RH |
| Warranty | Kyocera standard warranty against manufacturing defects. Does not cover misuse, incorrect parameters, or improper handling. |
| Returns | Unused tools in original packaging may be returned within 30 days. Custom or modified tools are non-returnable. |
| Bulk Pricing | Contact Kyotow.com sales for quantities above 50 pieces. Institutional and OEM pricing available. |
Catalog Meta Data
| Attribute | Value |
|---|---|
| Kyocera Catalog Series | SGM – Solid Carbide Micro Endmills |
| Catalog Page Reference | Page 160, Edition A (2024) |
| ECCN Classification | 1C998 (standard carbide cutting tools) |
| Country of Manufacture | Japan |
| HS Code | 8207.70.60 (Interchangeable tools for milling) |
| RoHS Compliance | Compliant – Lead-free substrate and coating |
| REACH Status | No SVHC substances above 0.1% w/w threshold |
| ISO 9001:2015 | Manufactured under Kyocera certified quality management system |
| Batch Traceability | Laser-marked lot number on shank for full manufacturing traceability |
✓ 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.
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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
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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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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.
