Kyocera 21/64 TA IC SGS51817 Carbide Drill - CNC Precision

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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS51817
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Product Overview
The Kyocera 21/64 DRILL 2FL 8XD TA IC SGS51817 is a premium solid carbide drill engineered for high-performance CNC machining. Designed to deliver exceptional hole quality, dimensional accuracy, and extended tool life, this drill is ideal for demanding production environments across aerospace, automotive, and general engineering sectors.
ISO Designation Breakdown
| Designator | Meaning |
| Kyocera | Manufacturer / Brand |
| 21/64 | Nominal Drill Diameter (inch) |
| DRILL | Tool Category — Solid Carbide Drill |
| 2FL | Number of Flutes — 2 |
| 8XD | Flute Length Ratio — 8 × Diameter |
| TA IC | Carbide Grade / Coating Designation |
| SGS51817 | Manufacturer Part Number (MPN) |
Engineering Dimensions & Geometry
| Parameter | Inch | Metric |
| Nominal Diameter (D) | 0.328125" | 8.33 mm |
| Flute Length (Lf) | 2.625" | 66.64 mm |
| Overall Length (Lo) | 3.94" | 99.96 mm |
| Helix Angle | — | 40° |
| Point Angle | — | 140° |
| Number of Flutes | — | 2 |
| Shank Diameter | 0.328125" | 8.33 mm (cylindrical) |
Grade Details — Key Grade Characteristics
The TA IC grade combines a micro-grain carbide substrate with an advanced PVD multi-layer coating optimized for high-speed drilling in steels and stainless steels.
| Property | Specification |
| Substrate | Ultra-fine grain tungsten carbide (0.5 μm) |
| Coating | Multi-layer PVD (AlTiN-based) |
| Hardness (HV) | 1,850 ± 100 |
| Transverse Rupture Strength | 3,800 MPa |
| Coating Thickness | 2.5 – 3.5 μm |
| Max Operating Temperature | 1,100 °C |
Grade Comparison Matrix
| Grade | Coating | Primary Material | Speed Factor |
| TA IC | AlTiN PVD | Steel, Stainless Steel | 1.0× (Baseline) |
| TA IC-H | AlTiN + DLC | Hardened Steel > 45 HRC | 1.15× |
| TA IC-S | TiSiN PVD | Superalloys, Titanium | 1.20× |
| TA IC-G | TiAlN | Cast Iron, Graphite | 0.95× |
Chipbreaker Profile
This 2-flute design incorporates a precision-ground chipbreaker geometry optimized for 8XD deep-hole drilling. The flute profile ensures efficient chip evacuation and minimizes built-up edge (BUE) in long-chipping materials.
| Feature | Description |
| Flute Form | Parabolic helix with polished flanks |
| Core Thickness | 35% of nominal diameter for enhanced rigidity |
| Margin Width | 0.10 × D (standard) |
| Chipbreaker Type | Continuous micro-groove along cutting edge |
| Surface Finish | Mirror polish (Ra < 0.2 μm) on flute surfaces |
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Machinability | Recommended |
| Low-alloy / Carbon Steels | P1 – P3 | Excellent | ✓ Primary |
| Stainless Steels (Austenitic) | M1 – M2 | Very Good | ✓ Primary |
| Tool & Hardened Steels | H1 – H2 | Good | ◊ Conditional |
| Cast Irons (Grey / Ductile) | K1 – K3 | Good | ◊ Conditional |
| Titanium Alloys | S1 – S2 | Moderate | ◊ Conditional |
| Aluminum & Non-ferrous | N1 – N3 | Limited | — Not recommended |
Application Map by Operation
| Operation | Suitability | Notes |
| Through-hole Drilling | ★★★ Excellent | Optimized chip evacuation for 8XD depth |
| Blind-hole Drilling | ★★★ Excellent | Precise depth control with minimal burr |
| Peck Drilling | ★★★ Excellent | Recommended for depths > 5×D |
| Helical Interpolation | ★★☆ Good | Use reduced feed rates |
| Plunge / Spot Drilling | ★★☆ Good | Self-centering 140°–150° point angle |
| Counterboring | ★☆☆ Limited | Not designed for enlarging operations |
Recommended Cutting Conditions
Parameters below are starting recommendations for external coolant setups. Adjust based on machine rigidity, workpiece fixturing, and coolant pressure.
| Material | Cutting Speed Vc (m/min) | Feed fn (mm/rev) | Coolant |
| Carbon Steel (P1) | 80 – 120 | 0.10 – 0.18 | Emulsion / MQL |
| Alloy Steel (P2–P3) | 60 – 90 | 0.08 – 0.15 | Emulsion 8–10% |
| Stainless Steel (M1) | 40 – 65 | 0.06 – 0.12 | High-pressure coolant |
| Cast Iron (K1) | 70 – 100 | 0.10 – 0.20 | Compressed air / MQL |
| Titanium (S1) | 25 – 40 | 0.05 – 0.10 | High-volume emulsion |
Operating Guidelines
- Runout Tolerance: Maintain spindle runout < 0.01 mm (0.0004") for optimal tool life and hole quality.
- Coolant Pressure: For 8XD drilling, minimum 70 bar (1,000 psi) through-spindle coolant is strongly recommended to ensure chip evacuation.
- Peck Cycle: Use a variable peck depth (Q) of 1.5–2.0×D for the first peck, reducing to 1.0×D for subsequent pecks.
- Entry Angle: Ensure perpendicular entry or use a spot drill to prevent chipping of the cutting corners.
- Re-sharpening: Not recommended; this solid carbide drill is designed as a disposable tool for consistent performance.
- Storage: Keep in original packaging until use. Avoid contact between cutting edges and hard surfaces.
Toolholder Compatibility
| Holder Type | Compatibility | Notes |
| Hydraulic Chuck (Hydro) | ✓ Excellent | Best damping for 8XD drills; TIR < 0.003 mm |
| Shrink Fit | ✓ Excellent | High torque transmission; ensure correct bore size |
| ER Collet (ER16–ER32) | ✓ Good | Use precision collets (AA grade); clamping length ≥ 2.5×D |
| Weldon Flat | ◊ Limited | Not applicable; cylindrical shank only |
| Milling Chuck | ✓ Good | Suitable for stable setups; verify gripping force |
Packaging & Ordering Information
| Item | Details |
| MPN / Catalog No. | SGS51817 |
| Packaging Unit | 1 piece per plastic tube with end caps |
| Labeling | Laser-marked diameter, grade, and MPN on shank |
| Minimum Order | 1 piece |
| Price (Indicative) | USD 367.3 |
| Warranty | Standard manufacturer defect warranty (90 days from invoice) |
Catalog Meta Data
| Attribute | Value |
| Series | SGS518xx — 2FL 8XD Solid Carbide Drill |
| Tool Category | Rotating Tool — Drill |
| Cutting Direction | Right-hand (RH) |
| Coolant Delivery | External (shank-through optional by series) |
| Industry Standards | DIN 6537, ISO 5414 |
| Country of Manufacture | Japan |
| Last Catalog Update | 2026-Q2 |
All technical data is provided as a guideline. Actual performance depends on machine condition, workpiece material, and coolant setup. For application-specific support, contact our technical team.
Certificate of Authenticity
This verifies that this package contains a genuine item manufactured to the strict global standards of Kyocera.
Guaranteed Quality
Original Kyocera components ensure optimal device performance, precise output quality, and long-term hardware safety. Using non-genuine parts may impact hardware functions and void existing service agreements.
Shipping & Stock Information 発送・在庫情報
We ship all products worldwide utilizing our strategic global network. To ensure the fastest dispatch times and optimal customs clearance, items are fulfilled and shipped directly from our primary corporate distribution facilities.
- In-stock items (在庫あり): Dispatched with precision from the nearest regional hub within 3 business days.
- Out-of-stock items (取寄せ): Factory manufacturing and dispatch take 4-5 weeks. Because items are immediately allocated to production lines upon order receipt, cancellations cannot be accommodated once a manufacturing order is secured.
- Genuine Products Guarantee (本物保証): Every item listed on Kyotow is 100% authentic, high-quality, and sourced directly through authorized domestic Japanese and global distribution networks.
Product Images & Technical Accuracy 正確な製品情報
In adherence to the philosophy of Monozukuri (物の作り) — Japanese manufacturing precision, we strive to maintain perfect data integrity. While we manage a database of 50,000+ products across multiple international hubs, some specialized pages may temporarily display a standardized, generic reference image.
To guarantee absolute accuracy for your machining requirements, please cross-reference the exact Kyocera Item Code, Item Name, and Material Grade.
- Use the official Kyocera Item Code and Grade specification to verify exact dimensions and compatibility before purchasing.
- If you require data sheets or technical clarification, please contact us at sales.kyotow@gmail.com.
Refund & Cancellation Policy 返品・キャンセルポリシー
We offer a full refund or replacement if the verified Kyocera part number of the item received differs from the official item code specified in your order confirmation.
Due to automated procurement systems linking directly to factory distribution channels across our global facilities, orders cannot be canceled or modified once processing begins. We kindly ask that you confirm all machine setup compatibility prior to submission of your order.
If you have any doubts regarding tool geometries, coatings, or application grades, please consult our support team at sales.kyotow@gmail.com before finalizing your procurement.
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Direct 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.







