Kyocera D91 1200 CDR00840 DRILL - CNC Machining
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: CDR00840
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Kyocera D91 1200 CDR00840 — Solid Carbide Drill
► Product Overview
The Kyocera D91 1200 (MPN: CDR00840) is a precision-engineered solid carbide drill designed for high-performance CNC machining operations. With a nominal diameter of 12.0 mm, this tool delivers exceptional dimensional accuracy, superior surface finish, and extended tool life across demanding production environments. Manufactured in Japan to stringent ISO 9001 quality standards, the D91 series represents the pinnacle of drilling technology for modern manufacturing.
► ISO Designation Breakdown
| Designation Element | Value | Description |
|---|---|---|
| Series | D91 | Kyocera standard solid carbide drill platform |
| Diameter Code | 1200 | Nominal Ø 12.0 mm |
| MPN | CDR00840 | Manufacturer Part Number (unique identifier) |
| ISO Class | K | Primary workpiece material classification |
| Coating | PVD TiAlN | Surface treatment for heat/wear resistance |
► Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
|---|---|---|
| Nominal Diameter (D) | 12.0 mm | h7 (±0.010 mm) |
| Overall Length (L) | 96.0 mm | ±0.5 mm |
| Flute Length (l) | 36.0 mm | ±0.3 mm |
| Shank Diameter (d) | 12.0 mm | h6 |
| Point Angle | 118° | ±2° |
| Helix Angle | 30° | ±1° |
| Number of Flutes | 2 | — |
| Corner Radius | Standard | ±0.005 mm |
► Grade Details — Key Grade Characteristics
The D91 series utilizes Kyocera's proprietary micro-grain carbide substrate combined with an advanced PVD TiAlN multi-layer coating system. This synergistic combination delivers:
- Ultra-fine grain structure (0.5 μm) for superior edge sharpness and toughness
- PVD TiAlN coating providing exceptional thermal stability up to 900°C
- High hardness (HRA 92.5) ensuring minimal wear in high-speed applications
- Optimized cobalt binder (8%) balancing hardness with fracture resistance
- Low friction coefficient reducing built-up edge and improving chip evacuation
► Grade Comparison Matrix
| Property | D91 1200 | Standard Grade | Competitor A |
|---|---|---|---|
| Hardness (HRA) | 92.5 | 91.0 | 91.5 |
| Transverse Rupture (MPa) | 3,800 | 3,200 | 3,400 |
| Coating Thickness (μm) | 2.5 | 1.8 | 2.0 |
| Max Cutting Temp (°C) | 900 | 750 | 800 |
| Tool Life Index | 100% | 75% | 82% |
► Chipbreaker Profile
The D91 1200 features an optimized chipbreaker geometry specifically engineered for Ø12.0 mm drilling operations. The flute profile incorporates a variable helix design with polished rake surfaces to ensure smooth chip formation and evacuation. The proprietary edge preparation minimizes burr formation and reduces cutting forces by up to 15% compared to conventional geometries.
| Geometric Feature | Value | Function |
|---|---|---|
| Rake Angle (γ) | 12°–15° | Reduces cutting force, improves chip flow |
| Relief Angle (α) | 8°–10° | Minimizes flank wear, prevents rubbing |
| Edge Preparation | T-land + hone | Enhances edge stability, prevents chipping |
| Flute Polishing | Ra 0.2 μm | Reduces chip adhesion, improves evacuation |
► Recommended Applications & Workpiece Materials
The Kyocera D91 1200 is ideally suited for the following materials and application scenarios:
- Steel Machining: Aluminum Alloys, Copper, Brass
- General Engineering: Structural components, shafts, housings, flanges
- Automotive: Engine blocks, transmission cases, brake components
- Aerospace: Titanium alloy structural elements (with adjusted parameters)
- Die & Mold: Precision holes in tool steel and hardened materials
- Energy Sector: Pump housings, valve bodies, pipeline components
► Application Map by Operation
| Operation Type | Suitability | Notes |
|---|---|---|
| Through-Hole Drilling | ★★★★★ Excellent | Optimal chip evacuation, minimal burr |
| Blind-Hole Drilling | ★★★★☆ Very Good | Use peck cycle for depths >3×D |
| High-Speed Drilling | ★★★★★ Excellent | Coating optimized for elevated temps |
| Precision Drilling | ★★★★★ Excellent | H7 tolerance achievable in stable conditions |
| Stack Drilling | ★★★☆☆ Good | Ensure rigid clamping, reduce feed 10% |
| Micro-Drilling | ★★★★☆ Very Good | Stable spindle required < 8,000 RPM |
► Recommended Cutting Conditions
| Material Group | Cutting Speed Vc (m/min) | Feed f (mm/rev) | Coolant |
|---|---|---|---|
| Low-Carbon Steel (< 0.25% C) | 55–70 | 0.09–0.14 | Emulsion / Internal |
| Medium-Carbon Steel (0.25–0.60% C) | 50–65 | 0.09–0.17 | Emulsion / Internal |
| High-Carbon Steel (> 0.60% C) | 45–60 | 0.07–0.14 | Internal / MQL |
| Stainless Steel (Austenitic) | 40–55 | 0.06–0.12 | Internal / High-pressure |
| Cast Iron (Gray / Ductile) | 65–80 | 0.12–0.19 | Dry / Compressed Air |
| Aluminum Alloys | 85–105 | 0.14–0.24 | Dry / MQL |
► Operating Guidelines
To maximize tool life and hole quality with the CDR00840, adhere to the following best practices:
- Runout Control: Maintain tool runout below 0.01 mm at the tool tip. Use precision collet chucks or hydraulic holders.
- Peck Drilling: For depths exceeding 3×D, employ a peck cycle with 1×D peck depth and 0.3×D retract.
- Coolant Delivery: Ensure internal coolant pressure ≥ 20 bar for effective chip evacuation. For external coolant, use high-flow nozzles directed at the cutting zone.
- Entry Angle: Use a chamfer or center drill to prevent wandering on inclined surfaces. Minimum chamfer: 0.2 mm × 45°.
- Speed Ramp: When starting a new tool, reduce cutting speed by 20% for the first 10 holes to break in the cutting edge.
- Tool Change Interval: Monitor flank wear (VB). Replace tool when VB = 0.3 mm or when surface finish degrades.
- Storage: Store in original packaging away from humidity. Avoid contact between cutting edges to prevent chipping.
► Toolholder Compatibility
| Holder Type | Compatibility | Recommendation |
|---|---|---|
| ER Collet Chuck | ER16 / ER20 / ER25 | Use AA-grade collets for best runout |
| Hydraulic Chuck | HydroForce / Similar | Excellent damping, ideal for high-speed |
| Shrink Fit | HSK-A63 / HSK-E40 | Best for high-speed precision work |
| Weldon Shank | Side-lock holders | Acceptable for lower-speed applications |
► Packaging & Ordering Information
| Item | Details |
|---|---|
| MPN | CDR00840 |
| Packaging Unit | 1 piece per plastic tube |
| Minimum Order | 1 piece |
| Stock Status | In Stock — Ready to ship |
| Price | $114.10 USD per piece |
| Warranty | Full manufacturer warranty against defects |
| Certificate | ISO 9001:2015 compliant manufacturing |
► Catalog Meta Data
| Attribute | Value |
|---|---|
| Catalog Series | Kyocera D91 Solid Carbide Drills |
| Page Reference | 2026 General Catalog, Section D, pp. 45–48 |
| Revision Date | 2026-03-15 |
| ECCN | EAR99 |
| Country of Origin | Japan |
| Harmonized Code | 8207.70.00 |
Need application support? Our CNC tooling specialists are available to help you select the optimal cutting parameters for your specific material and machine setup. Contact us for technical datasheets, CAD models, or bulk pricing inquiries.
✓ 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
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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.
