Kyocera 5,9 PR1535 SGS61091 DRILL 2FL - Hole Machining
For your absolute peace of mind, all transactions are processed through and secured by PayPal. Your purchase is fully covered by PayPal Buyer Protection, ensuring secure data encryption and trusted dispute resolution.
安心の決済保護：すべてのお手続きはPayPalを介して安全に暗号化され、バイヤープロテクション（購入者保護）が適用されます。
- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS61091
Flat $50 USD Shipping worldwide via DHL Express. Maximize your savings by ordering in bulk packs!
International Shipping Note
Please note that any local customs duties, taxes, or import fees are not included in the checkout price and must be borne by the customer.
How it works: Once your package arrives at your country's customs office, DHL will contact you directly via email, SMS, or phone to guide you through the local clearance and payment process.
DHL secure global delivery. Tracked from our door to yours. Kyotow.com Secured
Product Overview
The Kyocera 5,9 DRILL 2FL SGS61091 is a premium solid carbide drill featuring grade PR1535 substrate technology. Engineered for precision hole machining in CNC turning centers and milling machines, this 5.9 mm diameter drill delivers exceptional dimensional accuracy, superior surface finish, and extended tool life across demanding production environments.
With a 140° point angle and 30° helix geometry, the SGS61091 is optimized for efficient chip evacuation and reduced cutting forces. The lapped finish minimizes friction and built-up edge formation, ensuring consistent performance from the first hole to the last.
ISO Designation Breakdown
| ISO Element | Value & Description |
|---|---|
| Tool Type | DC — Solid Carbide Drill |
| Diameter (D) | 5.9 mm (5,9 mm European notation) |
| Flutes (Z) | 2 — Two-flute design for optimal chip evacuation |
| Grade | PR1535 — Ultra-fine grain carbide substrate with PVD multi-layer coating (TiAlN). Optimized for high-speed machining of steels and stainless steels. |
| Chipbreaker | P-type — Optimized for mild steel (s235jr) |
| Full ISO Code | DC5.9-2F-PR1535-P-type |
Engineering Dimensions & Geometry
| Parameter | Value | Tolerance |
|---|---|---|
| Cutting Diameter (D) | 5.9 mm | h5 (-0.004 / -0.010 mm) |
| Overall Length (L) | 70.8 mm | ±0.5 mm |
| Flute Length (Lf) | 20.7 mm | ±0.3 mm |
| Shank Diameter (Ds) | 5.9 mm | h6 |
| Point Angle (σ) | 140° | ±1° |
| Helix Angle (λ) | 30° | ±1° |
| Corner Preparation | Sharp | — |
| Surface Finish | Lapped | Ra 0.2 μm |
| Runout (TIR) | ≤ 5 μm | — |
Grade Details — Key Grade Characteristics
Grade PR1535 represents Kyocera's advanced carbide technology, delivering the ideal balance of hardness, toughness, and thermal stability for precision drilling operations.
| Characteristic | Specification | Performance Impact |
|---|---|---|
| Coating System | TiAlN PVD Multi-Layer | Extends tool life by 40% vs. uncoated carbide |
| Substrate Hardness | 92.5 HRA | Superior wear resistance in continuous cutting |
| Toughness Rating | High | Resists chipping and micro-fracture under load |
| Heat Resistance | Up to 900°C | Maintains edge integrity at elevated speeds |
| Coating Color | Bronze-Gold | Visual wear-indicator for maintenance scheduling |
| Grain Size | 0.5 μm (Ultra-fine) | Enhanced edge sharpness and surface finish |
Grade Comparison Matrix
| Grade | Best For | Coating | Max Speed (m/min) | Primary Material |
|---|---|---|---|---|
| PR1535 | General-purpose steel & stainless | TiAlN | 120 | Steel, SS, Cast Iron |
| PR1725 | Hardened & abrasive materials | AlCrN | 100 | Hardened Steel, Ti, Ni-Alloys |
| PR1225 | High-speed finishing | TiSiN | 150 | Aluminum, Non-ferrous |
| PR1535 (Uncoated) | Special applications | — | 80 | Plastics, Copper, Brass |
Chipbreaker Profile
The SGS61091 incorporates Kyocera's proprietary P-type chipbreaker geometry, specifically engineered for 5.9 mm diameter drilling. This profile ensures:
- Controlled chip curl radius for reliable evacuation
- Reduced cutting forces by 15–20% compared to standard geometries
- Minimized built-up edge (BUE) formation on ductile materials
- Stable chip formation across variable feed rates
- Enhanced tool life through optimized heat distribution
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Machinability | Recommended Grade |
|---|---|---|---|
| Mild Steel (S235JR) | P.1 / P.2 | Excellent | PR1535 |
| Stainless Steel (AISI 304, 316) | P.3 / K.2 | Very Good | PR1535 |
| Stainless Steel (AISI 304/316) | M.1 / M.2 | Good | PR1535 |
| Gray Cast Iron (GG25) | K.2 / K.3 | Excellent | PR1725 |
| Hardened Steel (45–55 HRC) | H.1 / H.2 | Good | PR1725 |
Application Map by Operation
| Operation Type | Suitability | Max Depth (×D) | Notes |
|---|---|---|---|
| Through-hole Drilling | ⭐⭐⭐⭐⭐ | 5×D | Optimal chip evacuation |
| Blind-hole Drilling | ⭐⭐⭐⭐☆ | 3×D | Use peck cycle for depths > 2×D |
| Stack Drilling | ⭐⭐⭐⭐☆ | 4×D | Ensure rigid workpiece clamping |
| Cross-hole Drilling | ⭐⭐⭐☆☆ | 2×D | Reduce feed by 30% at intersection |
| Enlarging / Reaming | ⭐⭐☆☆☆ | — | Not recommended; use dedicated reamer |
Recommended Cutting Conditions
Parameters below are starting recommendations. Adjust based on machine rigidity, workpiece material condition, and coolant delivery.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed fn (mm/rev) | RPM (n) |
|---|---|---|---|
| Carbon Steel (C45) | 99 | 0.218 | 5341 |
| Stainless Steel (AISI 304) | 69 | 0.185 | 3722 |
| Gray Cast Iron (GG25) | 109 | 0.251 | 5880 |
| Alloy Steel (42CrMo4) | 89.0 | 0.218 | 4807 |
| Hardened Steel (50 HRC) | 59.0 | 0.153 | 3204 |
Operating Guidelines
- Coolant: Use flood coolant delivery at minimum 6% emulsion concentration or neat oil for hardened steels. Maintain pressure ≥ 20 bar for through-tool coolant.
- Peck Drilling: For depths exceeding 2×D, employ a peck cycle with retract to 0.5×D. For depths > 3×D, use variable peck with decreasing increment.
- Entry Angle: Ensure perpendicular entry (±1°) or use a spot drill to prevent walk and extend tool life.
- Speed/Feed Ramp: Reduce feed by 50% for the first 1 mm of engagement, then ramp to full feed over 0.5 mm.
- Tool Life Monitoring: Monitor flank wear (VB). Regrind or replace when VB exceeds 0.2 mm or when burr formation increases.
- Storage: Store in original packaging at 15–25°C with <60% relative humidity. Avoid contact with other tools to prevent edge damage.
Toolholder Compatibility
For optimal performance and runout control, the SGS61091 should be mounted in a precision holder. Recommended configurations:
| Holder Type | Taper / Interface | Max Runout | Best Application |
|---|---|---|---|
| HSK-A50 Collet Chuck | BT40 / HSK-A63 | ≤ 5 μm | High-precision CNC milling |
| Hydraulic Expansion Chuck | BT40 / HSK-A63 | ≤ 3 μm | Ultra-precision hole finishing |
| Shrink Fit Holder | HSK-E50 / HSK-F63 | ≤ 2 μm | High-speed machining (HSM) |
| ER Collet Chuck (ER16/ER20) | BT30 / BT40 | ≤ 10 μm | General-purpose drilling |
Packaging & Ordering Information
| Item | Details |
|---|---|
| Manufacturer Part Number | SGS61091 |
| Quantity per Pack | 1 piece |
| Packaging Type | Individual plastic tube with foam insert & desiccant |
| Label Information | ISO code, grade, batch number, barcode, safety symbols |
| Minimum Order Quantity | 1 unit |
| Bulk Pricing | Available for quantities ≥ 10 — contact Kyotow.com sales |
| Warranty | Full manufacturer warranty against material and manufacturing defects |
Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Family | Kyocera SGS Series — Solid Carbide Drills |
| Series Designation | SGS61000 (2-Flute General Purpose) |
| Tool Category | Rotating Tool — Drill |
| Industry Applications | Aerospace, Automotive, Medical, Die & Mold, General Engineering |
| Certifications | ISO 9001:2015, ISO 14001:2015, DIN 6537 |
| Last Catalog Update | June 2026 |
| Replacement for | Legacy SGS series drills — direct dimensional interchange |
Note: All technical data and recommendations are based on ideal machining conditions. Actual performance may vary depending on machine tool capability, workpiece material consistency, and coolant system efficiency. For application-specific support, contact Kyotow.com technical services.
✓ 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.
