Kyocera D88 PV7020 CDR00273 Drill - High-Speed Micro Drilling
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: CDR00273
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1. Product Overview
The Kyocera D88 PV7020 CDR00273 is a premium micro solid carbide drill engineered for high-speed micro drilling. Manufactured in Japan to exacting ISO standards, this tool combines an advanced PVD Nano-layer TiAlN coating with a precision-ground carbide substrate to deliver exceptional hole quality, dimensional accuracy, and extended tool life. Designed for modern CNC machining centers, it ensures reliable performance in high-volume production environments across aerospace, automotive, energy, and general manufacturing sectors.
2. ISO Designation Breakdown
| Field | Code | Meaning |
|---|---|---|
| Tool Series | D88 | Micro Solid Carbide Drill family |
| Nominal Diameter | D930 | 9.30 mm cutting diameter |
| Carbide Grade | PV7020 | PVD Nano-layer TiAlN coated substrate |
| MPN / Catalog No. | CDR00273 | Manufacturer part number |
| ISO Class | P10-P30, K20-K30 | Primary workpiece material group |
3. Engineering Dimensions & Geometry
| Dimension | Specification | Tolerance |
|---|---|---|
| Cutting Diameter (D) | 9.30 mm | h8 |
| Flute Length (L_f) | 47 mm | +0/-0.5 mm |
| Overall Length (L_o) | 104 mm | ±1.0 mm |
| Shank Diameter (D_s) | 10.00 mm | h6 |
| Point Angle | 130° | ±1° |
| Helix Angle | 35° | ±1° |
4. Grade Details – Key Grade Characteristics
PV7020 is a PVD Nano-layer TiAlN-coated fine-grained carbide grade specifically developed for steel, stainless steel, cast iron applications. The sub-micron WC-Co substrate (10% Co, 0.8 µm grain size) provides an optimal balance of hardness (HV 1,650) and transverse rupture strength (3,200 MPa). The PVD Nano-layer TiAlN coating layer (3.5 µm total thickness) delivers exceptional oxidation resistance up to 900°C, reducing crater wear and built-up edge formation during high-speed machining.
- Substrate: Ultra-fine WC-10Co, 0.8 µm grain size
- Coating: PVD Nano-layer TiAlN, 3.5 µm, multi-layer architecture
- Hardness: HV 1,650 ( substrate ) / HV 2,800 ( coating )
- TRS: 3,200 MPa
- Max Operating Temp: 900°C
- Oxidation Resistance: Excellent (red scale test: > 30 min at 850°C)
5. Grade Comparison Matrix
| Grade | Coating | ISO Range | Best For | Speed Factor |
|---|---|---|---|---|
| PV7020 | PVD Nano TiAlN | P10-P30 | Micro Steel | 1.0× (Base) |
| PR1535 | PVD TiAlN | P15-P35 | General Steel | 0.95× |
| PR1225 | PVD TiCN | P05-P25 | Finish Steel | 0.9× |
| TN6020 | PVD Nano | K15-K35 | Cast Iron | 0.8× |
6. Chipbreaker Profile
The D88-Micro chipbreaker is engineered for micro-diameter drilling. It employs a single-land margin with a narrow 0.10 × D width to reduce friction in small holes. The flute geometry is a high-helix design (35°) that promotes rapid chip evacuation at low feed rates. A specialized edge preparation (K-land, 0.02 mm) strengthens the cutting edge against micro-chipping while maintaining sharpness for low cutting forces.
| Parameter | Value |
|---|---|
| Chipbreaker Name | D88-Micro |
| Land Width | 0.10 × D (0.93 mm) |
| Helix Angle | 35° |
| Flute Profile | High-helix parabolic |
| Edge Preparation | K-land 0.02 mm |
7. Recommended Applications & Workpiece Materials
The D88 PV7020 is optimized for the following material groups and applications:
- Primary: Steel, Stainless Steel, Cast Iron – through-hole and blind-hole drilling
- Secondary: Cast iron (GG25, GGG40), tool steel (H13, D2) – moderate speeds
- Tertiary: Titanium alloys (Ti-6Al-4V), nickel alloys – reduced parameters, peck cycle mandatory
- Application Types: General machining, mold & die, automotive powertrain, aerospace structural components
8. Application Map by Operation
| Operation | Workpiece | Condition | Priority |
|---|---|---|---|
| Micro Through-hole | Carbon Steel | MQL / Wet | ★★★ Primary |
| Micro Blind-hole | Stainless Steel (316L) | Wet, Peck 0.5mm | ★★★ Primary |
| Precision Hole | Titanium (Ti-6Al-4V) | Wet, Low Speed | ★★☆ Secondary |
| Enlargement | Aluminum (7075) | Dry, High Speed | ★☆☆ Tertiary |
9. Recommended Cutting Conditions
Parameters below are starting recommendations. Adjust based on machine rigidity, workpiece fixturing, and hole depth.
| Material | Hardness | Cutting Speed (Vc) | Feed (fn) | Coolant |
|---|---|---|---|---|
| Carbon Steel | < 200 HB | 80-100 m/min | 0.12-0.18 mm/rev | MQL / Wet |
| Alloy Steel | 200-280 HB | 60-80 m/min | 0.10-0.15 mm/rev | Wet |
| Stainless Steel | < 250 HB | 50-70 m/min | 0.08-0.12 mm/rev | Wet, Peck |
| Titanium | < 350 HB | 30-50 m/min | 0.06-0.10 mm/rev | Wet, Flood |
10. Operating Guidelines
- Runout Check: Maintain TIR < 5 µm at the tool tip for optimal performance and tool life.
- Coolant Pressure: For internal coolant tools, ensure minimum 2 MPa pressure; 3-5 MPa recommended for deep holes.
- Peck Cycle: Use peck drilling for depths > 3×D. Recommended peck increment: 0.5–1.0 × D for D88, 1.0–1.5 × D for D89.
- Entry Angle: Use chamfer or center drill pre-hole to avoid walk-in and improve positional accuracy.
- Speed Ramp: Reduce cutting speed by 15% for the first 50 holes to break in the cutting edge.
- Chip Evacuation: Ensure adequate coolant flow to flush chips. Chip packing is the #1 cause of premature failure.
- Tool Change: Monitor flank wear. Re-sharpen or replace when wear land exceeds 0.3 mm for steel applications.
11. Toolholder Compatibility
For optimal performance and tool life, use the recommended holder types below. Runout and clamping force directly affect hole quality and tool longevity.
| Holder Type | Interface | Max Speed | Runout Tolerance | Suitability |
|---|---|---|---|---|
| Micro Collet (ER11) | HSK-E32 / BT30 | 30,000 rpm | < 2 µm | ★★★ Excellent |
| Micro Collet (ER16) | HSK-E40 / BT30 | 25,000 rpm | < 3 µm | ★★★ Excellent |
| Shrink Fit Micro | HSK-E32 | 40,000 rpm | < 1 µm | ★★★ Excellent |
| Precision Chuck | BT30 / BT40 | 15,000 rpm | < 5 µm | ★★☆ Good |
12. Packaging & Ordering Information
| Parameter | Details |
|---|---|
| Packaging Unit | Individual plastic tube, 5 pcs per box |
| Minimum Order | 1 piece |
| Lead Time | Stock item – ships within 24 hours |
| Country of Origin | Japan |
| Catalog Number | CDR00273 |
| Unit Price | $118.00 |
13. Catalog Meta Data
| Meta Field | Value |
|---|---|
| Product Series | D88 |
| Tool Category | Micro Solid Carbide Drill |
| ISO Designation | D930 PV7020 |
| Grade Family | PV7020 |
| Coating Technology | PVD Nano-layer TiAlN |
| Applicable Standard | ISO 5419 |
| Last Catalog Update | June 2026 |
✓ 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.
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国際スピード郵便
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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.
