Kyocera 5,1 TX SGS66421 DRILL - CNC Machining
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS66421
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Product Overview
The Kyocera 5,1 DRILL 2FL 3XD TX IC SGS66421 is a high-performance solid carbide drill engineered for precision hole-making in demanding CNC machining environments. Manufactured in Japan, this 5,1 mm diameter drill features an optimized 2fl flute design with a 3XD length-to-diameter ratio, delivering exceptional chip evacuation, superior surface finish, and extended tool life across a wide range of ferrous and non-ferrous materials.
ISO Designation Breakdown
| Designator | Meaning | Specification |
|---|---|---|
| 5,1 | Nominal Diameter | 5,1 mm |
| DRILL | Tool Category | Solid Carbide Drill |
| 2FL | Flute Count | 2 Flutes |
| 3XD | Flute Length Ratio | 3× Diameter |
| TX | Grade / Coating | PVD Multi-Layer (TX) |
| IC | Inscribed Circle | Standard ISO |
| SGS66421 | Manufacturer Part Number | Kyocera OEM |
Engineering Dimensions & Geometry
| Parameter | Value | Tolerance |
|---|---|---|
| Nominal Diameter (DC) | 5,1 mm | h5 |
| Overall Length (OAL) | 51.4 mm | ±0.5 mm |
| Flute Length (CFL) | 15.3 mm | ±0.3 mm |
| Shank Diameter (DCON) | 5.1 mm | h6 |
| Point Angle (SIG) | 140° | ±2° |
| Helix Angle | 30.9° | ±1° |
| Corner Radius | 0.02 mm | ±0.01 mm |
| Core Thickness Ratio | 0.22 × DC | — |
Grade Details — Key Grade Characteristics
| Property | TX Grade Specification |
|---|---|
| Substrate | Ultra-Fine Carbide |
| Coating Technology | PVD Multi-Layer |
| Coating Hardness (HV) | 3,200 |
| Oxidation Temperature | 1,100 °C |
| Friction Coefficient | 0.35 |
| Thermal Conductivity | Low (heat directed into chip) |
| Wear Resistance | Excellent |
| Toughness | High |
Grade Comparison Matrix
| Grade | Coating | Best For | Max Speed (m/min) |
|---|---|---|---|
| TX (This Tool) | PVD Multi-Layer | Steel, Stainless, Cast Iron | 80–120 |
| PR1535 | PVD | General Steel | 60–90 |
| CA6535 | CVD | Cast Iron | 100–150 |
| GW15 | Uncoated | Aluminum, Non-Ferrous | 150–300 |
Chipbreaker Profile & Flute Geometry
The SGS66421 features an advanced flute profile optimized for 5,1 mm diameter drilling. The chipbreaker geometry is specifically engineered to promote controlled chip curling and fragmentation, preventing long stringy chips that can damage hole walls or clog flutes.
| Geometry Feature | Description | Benefit |
|---|---|---|
| Flute Form | Parabolic, polished | Superior chip evacuation, reduced friction |
| Margin Width | 0.12 × DC | Stable hole guidance, improved accuracy |
| Web Thinning | S-shaped gash | Reduced thrust force, lower heat generation |
| Point Geometry | Self-centering, split-point | Eliminates walk, precise positioning |
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Machinability | Typical Use Case |
|---|---|---|---|
| Carbon & Alloy Steel | P.1 – P.5 | ★★★★★ | Shafts, gears, structural components |
| Stainless Steel | M.1 – M.3 | ★★★★☆ | Medical parts, food-grade equipment |
| Cast Iron | K.1 – K.3 | ★★★★★ | Engine blocks, pump housings |
| Tool Steel (Hardened) | H.1 – H.3 | ★★★☆☆ | Molds, dies up to 45 HRC |
| Non-Ferrous | N.1 – N.3 | ★★★★☆ | Aluminum housings, brass fittings |
Application Map by Operation
| Operation | Suitability | Max Hole Depth | Notes |
|---|---|---|---|
| Through-Hole Drilling | ✓ Excellent | 3×D (standard) | Optimal chip evacuation |
| Blind-Hole Drilling | ✓ Excellent | 3×D | Peck cycle recommended |
| Stack Drilling | ✓ Good | 2×D per plate | Ensure rigid clamping |
| Cross-Hole Drilling | △ Moderate | 1.5×D | Reduce feed by 30% |
| Enlarging / Reaming | ✗ Not Recommended | — | Use dedicated reamer |
Recommended Cutting Conditions
| Workpiece Material | Cutting Speed (Vc) m/min | Feed (fn) mm/rev | RPM (n) |
|---|---|---|---|
| Low-Carbon Steel | 80 – 100 | 0.10 – 0.14 | 4993 – 6241 |
| Medium-Carbon Steel | 60 – 80 | 0.08 – 0.12 | 3744 – 4993 |
| Stainless Steel (304/316) | 40 – 60 | 0.06 – 0.10 | 2496 – 3744 |
| Gray Cast Iron | 70 – 90 | 0.12 – 0.18 | 4368 – 5617 |
| Aluminum Alloy | 120 – 200 | 0.12 – 0.20 | 7489 – 12482 |
Operating Guidelines
- Coolant: High-pressure internal coolant (minimum 20 bar) is strongly recommended for optimal chip evacuation and tool life.
- Peck Cycle: For blind holes deeper than 2×D, use a peck depth of 1–1.5×D with full retract to break chips.
- Entry Angle: When drilling into angled surfaces, reduce feed by 50% for the first 1 mm to prevent deflection.
- Tool Runout: Maintain total indicated runout (TIR) below 0.01 mm at the tool tip for best results.
- Pre-Drill: For holes deeper than 3×D or in work-hardening materials, consider a pilot hole of 0.5×D depth.
- Speed/Feed Ramp: Ramp up to full cutting parameters over 2–3 holes to allow the coating to "warm up" and stabilize.
Toolholder Compatibility
| Holder Type | Shank Fit | Clamping Force | Recommended |
|---|---|---|---|
| Hydraulic Chuck | H6 | High, uniform | ✓ Best for precision |
| ER Collet (ER16–ER25) | H6 | Medium | ✓ Good general purpose |
| Shrink Fit | H6 | Very high | ✓ Excellent for high-speed |
| Weldon Flat | Side-lock | High | △ Acceptable, check runout |
Packaging & Ordering Information
| Item | Details |
|---|---|
| MPN / Order Code | SGS66421 |
| Packaging | Individual plastic tube with protective wax coating |
| Quantity per Pack | 1 piece |
| Country of Origin | Japan |
| Warranty | Full manufacturer defect warranty (see terms) |
| Bulk Orders | Contact Kyotow.com for volume pricing |
Catalog Meta Data
| Field | Value |
|---|---|
| Catalog Series | SGS664 Series (Solid Carbide Drills) |
| Catalog Page | 2024–2025 Precision Drilling, p. 42–48 |
| Replacement For | — (Current generation) |
| ECCN | EAR99 |
| HS Code | 8207.50.00 |
| Last Catalog Update | 2024-Q3 |
All technical data is provided for reference purposes. Always consult the latest Kyocera product catalog or contact Kyotow.com technical support for application-specific recommendations.
✓ 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.
