Kyocera #29 TN SGS51281 DRILL - Precision CNC

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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS51281
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Product Overview
The Kyocera #29 DRILL 2FL 3XD TN SGS51281 is a precision-engineered solid carbide drill designed for high-performance CNC machining operations. Manufactured by Kyocera in Japan, this tool combines advanced substrate technology with optimized cutting geometry to deliver exceptional hole quality, dimensional accuracy, and extended tool life in demanding production environments.
With a 3:1 length-to-diameter ratio and TN-grade carbide substrate, the SGS51281 is the preferred choice for applications requiring reliable chip control, minimal deflection, and superior surface finish across a broad spectrum of workpiece materials.
ISO Designation Breakdown
| Designation Element | Value & Description |
|---|---|
| Manufacturer | Kyocera Precision Tools |
| Model Code | #29 — Nominal drill diameter |
| Tool Type | DRILL — Solid carbide twist drill |
| Flutes | 2FL — Two-flute design for optimal chip evacuation |
| L/D Ratio | 3XD — 3:1 length-to-diameter ratio |
| Grade | TN — Premium carbide grade designation |
| MPN | SGS51281 — Manufacturer part number |
Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
|---|---|---|
| Nominal Diameter | #29 (0.136") | h5 (±0.0002") |
| Flute Length | 0.408" | ±0.005" |
| Overall Length | 0.952" | ±0.010" |
| Shank Diameter | 0.136" | h6 |
| Point Angle | 140° | ±1° |
| Helix Angle | 30° | ±2° |
| Margin Width | 0.08 × Diameter | ±0.002" |
| Web Thickness | 0.18 × Diameter | ±0.003" |
Grade Details — Key Grade Characteristics
TN Grade: Advanced CVD-coated carbide grade engineered for extreme wear resistance in demanding machining of hardened and abrasive materials.
| Property | Specification |
|---|---|
| Substrate | Sub-micron grain tungsten carbide (0.4 μm) |
| Coating | TiCN-Al2O3 CVD multi-layer coating |
| Hardness | 93.0 HRA |
| TRS | 4,500 MPa |
| Color | Black-gold |
| Max Temp | 1,000°C |
Grade Comparison Matrix
| Grade | Wear Resistance | Toughness | Primary Materials | Best Application |
|---|---|---|---|---|
| TC | High | Excellent | Steel / Cast Iron / SS | High-speed finishing |
| TN | Very High | Superior | Hardened Steel / Alloys | Heavy-duty interrupted cuts |
| TA | High | Very Good | Aluminum / Non-ferrous | General purpose machining |
Chipbreaker Profile
Aggressive chipbreaker geometry with reinforced cutting edge and through-coolant channels for superior heat dissipation in deep-hole drilling.
- Optimized flute profile ensures continuous chip formation and evacuation
- Polished rake surface minimizes friction and built-up edge formation
- Reinforced cutting edge corner improves edge stability in interrupted cuts
- Variable helix design reduces harmonic vibration and chatter
Recommended Applications & Workpiece Materials
The SGS51281 with TN grade is specifically engineered for machining the following material groups:
Hardened steels (HRC 45-55), tool steels (D2, H13), nickel-based superalloys (Inconel 718), titanium alloys (Ti-6Al-4V), and abrasive cast irons.
Application Map by Operation
| Operation Type | Suitability | Notes |
|---|---|---|
| Through-Hole Drilling | ★★★★★ Excellent | Optimal chip evacuation with 2-flute design |
| Blind-Hole Drilling | ★★★★☆ Very Good | Ensure adequate peck cycle for chip clearance |
| Stack Drilling | ★★★★☆ Very Good | Use reduced feed at interface transitions |
| Cross-Hole Drilling | ★★★☆☆ Good | Reduce speed by 20% at intersection points |
| Enlarging / Reaming | ★★☆☆☆ Fair | Not recommended; use dedicated reamer for finishing |
Recommended Cutting Conditions
| Workpiece Material | Cutting Speed Vc (m/min) | Feed per Revolution fn (mm/rev) |
|---|---|---|
| Hardened Steel | 30-50 | 0.04-0.08 |
| Tool Steel | 40-60 | 0.05-0.10 |
| Inconel 718 | 20-35 | 0.03-0.06 |
| Ti-6Al-4V | 25-40 | 0.04-0.08 |
Note: Values are starting recommendations. Optimize based on machine rigidity, coolant delivery, and workpiece fixturing. Use high-pressure coolant (70+ bar) for deep-hole applications.
Operating Guidelines
- Coolant: High-pressure soluble oil or synthetic coolant (8-12% concentration) recommended. Minimum 20 bar pressure for 3XD applications.
- Peck Cycle: For 3XD drills, use full retraction peck cycle every 0.408" or when chip load exceeds 1.5× flute diameter.
- Entry Angle: Ensure perpendicular entry (±1°) or use spot drill / chamfer to prevent walk.
- Pre-Spotting: Recommended for #29 diameter and above to improve positional accuracy.
- Tool Overhang: Minimize overhang to 3× diameter or less for optimal stability and hole straightness.
- Spindle Runout: Maintain TIR ≤ 0.01 mm at tool tip for best performance and tool life.
Toolholder Compatibility
| Holder Type | Compatibility | Recommendation |
|---|---|---|
| Hydraulic Chuck | ★★★★★ Excellent | Best damping; ideal for 3XD deep-hole drilling |
| Shrink Fit | ★★★★★ Excellent | Maximum torque transmission and runout accuracy |
| ER Collet (ER25-ER40) | ★★★★☆ Very Good | Use precision collet (≤5 μm runout) for best results |
| Weldon Flat | ★★★☆☆ Good | Acceptable for short-hole applications only |
Packaging & Ordering Information
| Item | Details |
|---|---|
| MPN | SGS51281 |
| Packaging | Individual protective tube with anti-corrosion VCI film |
| Quantity per Pack | 1 piece |
| Warranty | Full manufacturer warranty against material and manufacturing defects |
| Certification | ISO 9001:2015; DIN 6537 standard compliance |
Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Family | SGS51 Series Solid Carbide Drills |
| Series | SGS51200 — Inch Size Range |
| Tool Category | Rotating Tools > Drills > Solid Carbide |
| Industry Sectors | Aerospace, Automotive, Energy, Medical, General Manufacturing |
| Replacement Policy | Direct replacement available; cross-reference with SGS51200 series |
Why Buy from Kyotow.com? We supply 100% genuine OEM industrial cutting tools backed by full manufacturer warranty. Every product is sourced directly from authorized distributors to ensure authenticity and traceability. Our technical team provides expert CNC tooling application support to help you select the right grade and geometry for your specific machining requirements.
Certificate of Authenticity
This verifies that this package contains a genuine item manufactured to the strict global standards of Kyocera.
Guaranteed Quality
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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.
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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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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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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.
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