Kyocera 7,5 DRILL 2FL 3XD TX IC SGS66445 Drill - Deep Hole CNC
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS66445
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Product Overview
The Kyocera 7,5 DRILL 2FL 3XD TX IC (MPN: SGS66445) is a premium solid carbide drill optimized for superior chip evacuation and hole quality. Featuring a 7.5 mm diameter with 2-flute architecture and AlCrN (TX Series) coating, this tool achieves exceptional hole accuracy and surface integrity in CNC machining centers.
Manufactured in Japan to exacting OEM standards, the SGS66445 combines advanced substrate technology with optimized point geometry to minimize cutting forces, reduce heat generation, and maximize metal removal rates across a broad spectrum of workpiece materials.
ISO Designation Breakdown
| ISO Code Element | Value | Interpretation |
| D | D7.5 | Nominal diameter 7.5 mm |
| L/D Ratio | 3xD | Flute length relative to diameter |
| Z | Z=2 | Number of flutes |
| σ | 140° | Point angle for optimal centering |
| Grade | PR1725-TX | Carbide grade with AlCrN (TX Series) |
Engineering Dimensions & Geometry
| Parameter | Specification |
| Nominal Diameter (D) | 7.5 mm |
| Flute Length (L1) | 22.5 mm (3xD) |
| Overall Length (L) | 72.5 mm |
| Shank Diameter (D1) | 7.5 mm (h6) |
| Point Angle | 140° |
| Helix Angle | 30° ± 2° |
| Web Thickness | 0.18 × D |
| Margin Width | 0.12 × D |
| Runout Tolerance | ≤ 0.005 mm |
| Surface Finish (Ra) | ≤ 0.4 µm |
Grade Details – Key Grade Characteristics
The PR1725-TX grade represents Kyocera's advanced carbide technology, specifically formulated for stainless steel & hard materials machining:
- Coating System: AlCrN (TX Series) — provides exceptional thermal barrier properties and oxidation resistance up to 1000°C.
- Substrate: Sub-micron carbide matrix ensures high transverse rupture strength and resistance to micro-chipping.
- Hardness: 93.0 HRA — maintains cutting edge integrity at elevated speeds.
- Coating Color: Dark Grey — visual identification for grade verification.
- Friction Coefficient: Reduced by 25% compared to uncoated substrates, minimizing built-up edge and extending tool life by up to 40%.
Grade Comparison Matrix
| Grade | Coating | Hardness | Best For |
| PR1725-TX | AlCrN (TX Series) | 93.0 HRA | Stainless Steel & Hard Materials |
| PR1535 | PVD Multi-layer | 92.0 HRA | General Purpose Steel |
| PR1725-TX | AlCrN | 93.0 HRA | Stainless & Hard Materials |
| CA6535 | CVD Coated | 91.5 HRA | Cast Iron & Non-ferrous |
Chipbreaker Profile
The SGS66445 features an optimized point geometry with advanced web thinning and margin design to enhance chip formation and evacuation:
- Point Geometry: Self-centering 140° split point with reinforced chisel edge for reduced thrust forces.
- Flute Profile: Parabolic flute design with polished surface (Ra 0.2 µm) to prevent chip packing in deep-hole applications.
- Margin Treatment: Dual-margin configuration with honed edges (0.02 mm × 20°) stabilizes the tool in the cut and improves hole cylindricity.
- Chipbreaker Style: Continuous spiral chipbreaker with variable pitch to suppress harmonic vibration and ensure smooth chip curling.
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Machinability | Recommended |
| Carbon Steel (≤ 0.5% C) | P.1 / P.2 | Good | ✓ Excellent |
| Alloy Steel (≤ 900 MPa) | P.3 / P.4 | Good | ✓ Excellent |
| Stainless Steel (Austenitic) | M.1 / M.2 | Moderate | ✓ Good |
| Cast Iron (Gray / Nodular) | K.1 / K.2 | Good | ✓ Excellent |
| Aluminum Alloy (Wrought) | N.1 / N.2 | Excellent | ✓ Good |
| Hardened Steel (45–55 HRC) | H.1 | Difficult | ○ Conditional |
Application Map by Operation
| Operation | Suitability | Notes |
| Through-Hole Drilling | ★★★★★ | Ideal for exit burr control with reduced breakthrough force |
| Blind-Hole Drilling | ★★★★☆ | Ensure adequate peck cycle for chip evacuation |
| Counterboring | ★★★☆☆ | Limited by 3xD flute length; use dedicated tool for deep counterbores |
| Spot Drilling | ★★★★☆ | 140° point angle matches standard countersinks |
| Enlarging / Reaming | ★★☆☆☆ | Not recommended; use dedicated reamer for H7 tolerance |
Recommended Cutting Conditions
Parameters below are starting recommendations for stable CNC environments with internal coolant supply (≥ 70 bar recommended for 3xD drills):
| Workpiece Material | Cutting Speed Vc (m/min) | Feed fn (mm/rev) | Coolant |
| Carbon Steel | 60 | 0.1 – 0.15 | Emulsion (8–10%) |
| Alloy Steel | 54.0 | 0.1 – 0.13 | Emulsion (8–10%) |
| Stainless Steel | 35 | 0.08 – 0.12 | Water-Soluble (10–12%) |
| Gray Cast Iron | 60 | 0.12 – 0.18 | Dry / Compressed Air |
| Aluminum Alloy | 120 | 0.15 – 0.22 | Water-Soluble (5–8%) |
Note: Reduce Vc by 15% when drilling stacked plates or cross-hole intersections. Increase feed by 20% for piloted drilling operations.
Operating Guidelines
- Peck Cycle: For 3xD drills, use peck depth of 1.5–2.0×D in steels; 2.5–3.0×D in aluminum. Full retract every 3–4 pecks to clear chips.
- Coolant Pressure: Minimum 30 bar internal coolant for holes > 3×D; 70+ bar recommended for uninterrupted production.
- Tool Overhang: Keep L/D ratio ≤ 5 for best results. If unavoidable, reduce Vc by 10% and increase feed by 5% to stabilize.
- Entry Angle: Ensure perpendicular entry within ±1°. Use spot drill or chamfer if drilling on inclined surfaces > 5°.
- Spindle Runout: Verify spindle TIR < 0.01 mm at tool tip. Excessive runout accelerates corner wear and reduces hole tolerance.
- Re-sharpening: Not recommended. These solid carbide drills are designed as disposable tools; re-sharpening voids dimensional guarantees.
Toolholder Compatibility
| Holder Type | Clamping Range | Suitability |
| Hydraulic Chuck (Hydro) | 7.5 mm | ★★★★★ — Best damping & accuracy |
| ER Collet Chuck (ER25/ER32) | 7.5 mm | ★★★★☆ — Good for general use |
| Shrink Fit Holder | 7.5 mm | ★★★★★ — Excellent for high-speed |
| Milling Chuck (Mega) | 7.5 mm | ★★★☆☆ — Adequate for short holes |
| Drill Chuck (Keyless) | 7.5 mm | ★★☆☆☆ — Not recommended for production |
Packaging & Ordering Information
- Packaging: Individual plastic tube with anti-corrosion VCI film; 10 pcs per master carton for bulk orders.
- Labeling: Each tube includes MPN barcode, batch number, manufacturing date, and ISO 13399 tool data matrix.
- Minimum Order: 1 piece (sample); volume pricing available for 50+ units.
- Lead Time: Stock items ship within 24–48 hours. Non-stock items: 4–6 weeks ex-works Japan.
- Warranty: 12-month manufacturer defect coverage from date of invoice. Does not cover misuse or improper parameters.
Catalog Meta Data
| Field | Value |
| Catalog Series | Kyocera SGS Solid Carbide Drill Series |
| Product Family | 2-Flute General Purpose / 3xD Length |
| ISO 13399 Classification | Drill — Solid Carbide — 140° Point — 2 Flute |
| GTCIN / ECLASS | ECLASS 17-01-03-01 (Drill bit) |
| UNSPSC Code | 23241603 (Twist Drills) |
| Country of Manufacture | Japan |
| RoHS Compliance | Yes (EU 2011/65/EU) |
| REACH Status | Compliant — No SVHC > 0.1% w/w |
Need application support? Contact our technical team for cutting parameter optimization, tool life benchmarking, or custom toolholder recommendations for the SGS66445.
✓ 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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国際スピード郵便
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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.
