Kyocera 1/8 DRILL 6FL PR1535 SGS74149 Drill - CNC Precision Machining
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGS74149
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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.
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Product Overview
The Kyocera 1/8 DRILL 6FL PR1535 (SGS74149) is a premium six-flute drill engineered for demanding CNC machining environments. Manufactured in Japan to exacting OEM standards, this solid carbide drill delivers exceptional dimensional accuracy, superior surface finish, and extended tool life across high-volume production runs.
ISO Designation Breakdown
| ISO Designation | D18-6 |
| Tool Category | Solid Carbide Drill |
| Flute Count | 6FL |
| Grade Code | PR1535 |
| Manufacturer Part No. | SGS74149 |
Engineering Dimensions & Geometry
| Parameter | Value | Tolerance |
|---|---|---|
| Cutting Diameter (D) | 3.175 mm (1/8") | h5 |
| Overall Length (L) | 45.4 mm | ±0.5 mm |
| Flute Length (l) | 11.5 mm | ±0.3 mm |
| Shank Diameter (d) | 3.175 mm | h6 |
| Helix Angle | 35° | ±2° |
| Point Angle | 140° | ±1° |
| Corner Radius | 0.05 mm | ±0.01 mm |
Grade Details - Key Grade Characteristics
PR1535 — PVD multi-layer coating with high thermal stability. Optimized for medium to high cutting speeds in steel and stainless steel applications.
- Substrate: Ultra-fine tungsten carbide (0.6 μm grain size)
- Coating: Multi-layer PVD/CVD technology
- Hardness: 98 HRA
- Transverse Rupture Strength: 3.7 GPa
- Max Operating Temperature: 950°C
Grade Comparison Matrix
| Grade | Coating | Best For | Speed Range |
|---|---|---|---|
| PR1535 | PVD Multi-layer | Steel, Stainless Steel | High |
| CA025P | CVD Thick Layer | Cast Iron, Hardened Steel | Medium-High |
| PR1725 | PVD Nano-layer | High-Hardness, Titanium | Medium |
Chipbreaker Profile
Six-flute design with staggered chipbreaker layout for maximum productivity and superior surface finish in finishing operations.
| Chipbreaker Type | Optimized for steel |
| Chip Control | Excellent — short curled chips |
| Surface Finish | Ra 0.4 – 0.8 μm |
Recommended Applications & Workpiece Materials
General machining, automotive components, aerospace structural parts, mold and die making.
| Material Group | Machinability | Recommended Grade |
|---|---|---|
| Carbon Steel (≤ 45 HRC) | Excellent | PR1535, CA025P |
| Stainless Steel (AISI 304/316) | Very Good | PR1535 |
| Cast Iron (GG25/GG30) | Excellent | CA025P |
| Hardened Steel (45-55 HRC) | Good | PR1725 |
| Titanium Alloys (Ti-6Al-4V) | Good | PR1725 |
Application Map by Operation
| Operation Type | Suitability | Notes |
|---|---|---|
| Through-Hole Drilling | ★★★★★ | Optimal chip evacuation |
| Blind-Hole Drilling | ★★★★☆ | Use peck cycle recommended |
| High-Speed Machining | ★★★★★ | Stable up to 150 m/min |
| Dry Machining | ★★★★☆ | Possible with proper parameters |
| Wet Machining | ★★★★★ | Recommended for extended tool life |
Recommended Cutting Conditions
| Parameter | Range | Optimal |
|---|---|---|
| Cutting Speed (Vc) | 80-150 m/min | 80 m/min |
| Feed per Revolution (fn) | 0.10-0.25 mm/rev | 0.10 mm/rev |
| Depth of Cut (ap) | 2.5-5.0×D | 2.5×D |
Operating Guidelines
- Always use precision collet or hydraulic chuck with TIR ≤ 0.01 mm
- Ensure workpiece clamping rigidity to minimize vibration
- Use peck drilling cycle for depths exceeding 3×D
- Maintain coolant concentration at 8-10% for emulsion-based coolants
- Inspect tool wear after every 30 minutes of cutting time
- Replace tool when flank wear exceeds 0.15 mm or chipping is detected
Toolholder Compatibility
| Holder Type | Compatibility | Max Speed |
|---|---|---|
| Hydraulic Chuck (Hydro) | Excellent | 25,000 RPM |
| Precision Collet (ER32/ER40) | Very Good | 20,000 RPM |
| Shrink Fit Holder | Excellent | 30,000 RPM |
| Weldon Flat Holder | Good | 15,000 RPM |
Packaging & Ordering Information
| Packaging | Individual plastic tube with protective foam insert |
| Minimum Order Quantity | 1 piece |
| Bulk Packaging | Available for orders of 10+ units |
| Warranty | Full manufacturer warranty against defects |
Catalog Meta Data
| Catalog Series | SGS Solid Carbide Drill Series |
| Product Line | Kyocera Precision Tools |
| Country of Manufacture | Japan |
| Last Catalog Update | 2026-Q2 |
| Price (USD) | $24.9 |
✓ 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.
