Kyocera 0,25 DRILL 2FL PR1535 SGM07049 Carbide Drill - CNC Drilling
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM07049
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Kyocera 0,25 Solid Carbide Drill — SGM07049
Product Overview
The SGM07049 represents Kyocera's advanced solid carbide drilling technology, specifically designed for precision hole-making operations in modern manufacturing environments. With a 0,25mm cutting diameter and optimized 2FL geometry, this drill achieves precise hole tolerances while maintaining excellent chip evacuation characteristics.
- Precision-ground solid carbide substrate for maximum rigidity and wear resistance
- Optimized 2FL helix geometry with 30° helix angle for efficient chip removal
- 140° point angle design for accurate centering and reduced burr formation
- PR1535 (Micro-Grain Carbide) grade technology for enhanced cutting performance and tool longevity
- Manufactured to ISO h5 hole tolerance standards for precision applications
- Compatible with standard ER collet systems and precision hydraulic chucks
ISO Designation Breakdown
| ISO Standard | ISO 5414 (Solid Carbide Drills) |
| Tool Designation | D0,25x2FLx0 |
| Cutting Diameter (D1) | 0,25 mm (±0.005 mm) |
| Overall Length (L1) | 30 mm |
| Flute Length (L2) | 0.8 mm (3xD) |
| Shank Diameter (D2) | 0,25 mm ( cylindrical) |
| Number of Flutes (Z) | 2 |
| Helix Angle | 30° |
| Point Angle | 140° |
| Corner Radius | Sharp (0.01 mm max) |
| Tolerance Class | h5 (ISO 286-2) |
| Surface Finish | Ra 0.2 μm (flute surface) |
Engineering Dimensions & Geometry
Macro Geometry
| Flute Form | Deep parabolic flute with polished surface |
| Core Diameter | 0.14 mm (56.0% of D1) |
| Web Thickness | 0.04 mm (tapered web design) |
| Margin Width | 0.03 mm (double margin) |
| Back Taper | 0.01 mm per 25 mm length |
| Runout Tolerance | ≤ 0.005 mm (at 3xD from tip) |
Micro Geometry
| Edge Preparation | Sharp edge (0.01 mm radius) for clean cutting |
| Rake Angle (γ) | 8° (positive) |
| Clearance Angle (α) | 12° (primary), 25° (secondary) |
| Chisel Edge Angle | 130° |
| Chisel Edge Length | 0.04 mm |
| Edge Roundness | ≤ 0.003 mm |
Grade Details — Key Grade Characteristics
Grade Designation
PR1535 (Micro-Grain Carbide)
Substrate Material
Ultra-fine grain tungsten carbide (0.5 μm grain size)
Coating Composition
Uncoated (bare substrate optimized for non-ferrous)
Coating Thickness
N/A (uncoated)
Hardness
93.0 HRA
Max Operating Temp
750°C
Color Appearance
Dark Gray
Friction Coefficient
0.45 (vs. aluminum)
Ultra-fine micro-grain carbide substrate with excellent edge sharpness and wear resistance. Optimized for precision micro-machining and non-ferrous materials.
Grade Comparison Matrix
| Property | TA Grade (This Tool) | PR1535 Grade | PR1705 Grade |
|---|---|---|---|
| Coating Type | Uncoated | TiAlN PVD | TiSiN PVD |
| Hardness (HRA) | 93.0 HRA | 93.0 | 93.5 |
| Transverse Rupture Strength | 3,800 MPa | 4,000 MPa | 4,200 MPa |
| Optimal Material | Aluminum, Copper, Plastics, Wood, Non-ferrous | Aluminum, Copper, Plastics | Hardened Steel (>50 HRC) |
| Max Cutting Speed | 60 m/min | 120 m/min | 80 m/min |
| Chip Evacuation | Excellent | Very Good | Good |
| Price Index | 1.0 (Baseline) | 0.85 | 1.15 |
Chipbreaker Profile
The SGM07049 features an advanced flute geometry optimized for 0,25mm diameter drilling. The chipbreaker design ensures reliable chip formation and evacuation across a wide range of materials and cutting parameters.
| Chipbreaker Type | Deep parabolic flute with polished surface |
| Flute Depth | 0.06 mm |
| Flute Width | 0.09 mm |
| Chip Curl Radius | 0.2 mm (target) |
| Chip Thickness Control | 0.05–0.15 mm (depending on feed) |
| Evacuation Channel | Polished to Ra 0.2 μm for smooth chip flow |
| Coolant Through Capability | Internal coolant compatible (0.8 mm min hole) |
Recommended Applications & Workpiece Materials
| Primary Applications | Precision through-holes, blind holes, micro-drilling, thread pre-drilling |
| Steel (P-Group) | Excellent — Unalloyed steel, low-alloy steel, high-alloy steel |
| Stainless Steel (M-Group) | Excellent — Austenitic, ferritic, martensitic stainless steels |
| Cast Iron (K-Group) | Good — Gray cast iron, nodular cast iron, malleable cast iron |
| Aluminum (N-Group) | Excellent — Wrought aluminum, cast aluminum, aluminum alloys |
| Non-ferrous (N-Group) | Good — Copper, brass, bronze, zinc alloys |
| Plastics & Composites | Fair — Thermoplastics, thermosets, GFRP, CFRP |
| Hardened Materials | Limited — Materials up to 45 HRC (reduced speed recommended) |
Application Map by Operation
| Operation Type | Suitability | Max Depth | Recommended Coolant | Notes |
|---|---|---|---|---|
| Through-hole Drilling | ★★★★★ | 3xD | Emulsion / MQL | Optimal chip evacuation |
| Blind-hole Drilling | ★★★★☆ | 3xD | Emulsion (high pressure) | Ensure bottom clearance |
| Peck Drilling | ★★★★★ | 6xD (deep) | Emulsion / Oil | 0.3–0.5 mm peck increment |
| Helical Interpolation | ★★★☆☆ | 1.5xD | Emulsion | Max 1.2xD hole enlargement |
| Plunging / Spotting | ★★★★☆ | 0.5xD | Any | Use reduced feed (50%) |
| Micro-drilling | ★★★★★ | 3xD | MQL preferred | Spindle runout < 0.003 mm |
Recommended Cutting Conditions
Parameters optimized for stable machining and maximum tool life. Adjust based on machine rigidity, workpiece clamping, and coolant delivery.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed per Rev fn (mm/rev) | Feed per Tooth fz (mm/tooth) | Max Depth ap (mm) |
|---|---|---|---|---|
| Low-alloy Steel (< 700 MPa) | 40 | 0.005 | 0.0025 | 0.8 |
| High-alloy Steel (> 700 MPa) | 30 | 0.004 | 0.002 | 0.6 |
| Stainless Steel (Austenitic) | 30 | 0.0037 | 0.0019 | 0.5 |
| Gray Cast Iron (HB 180–220) | 50 | 0.0063 | 0.0032 | 0.8 |
| Aluminum Wrought (Si < 1%) | 120 | 0.01 | 0.005 | 0.8 |
| Aluminum Cast (Si 5–12%) | 90 | 0.007 | 0.0035 | 0.6 |
| Copper / Brass | 100 | 0.008 | 0.004 | 0.8 |
| Titanium Alloy (Ti6Al4V) | 20 | 0.0022 | 0.0011 | 0.8 |
Spindle Speed Calculation
Example for Steel: n = (40 × 1000) / (π × 0,25) ≈ 50,929 rpm
Example for Aluminum: n = (120 × 1000) / (π × 0,25) ≈ 152,788 rpm
Operating Guidelines
Pre-Machining Setup
- Verify spindle runout is less than 0.005 mm at the tool tip
- Use precision collets (ER11/ER16 class 1) or hydraulic chucks
- Ensure workpiece is rigidly clamped to minimize vibration
- Program a 0.2 mm dwell at hole bottom for blind holes
- Use center drilling or spotting for holes deeper than 5xD
During Machining
- Maintain consistent coolant flow (minimum 15 L/min external, 20 bar internal)
- Monitor chip color — blue chips indicate excessive heat; reduce Vc by 10%
- For peck drilling, retract to 1xD above bottom for chip break
- Do not exceed recommended feed rates — micro-drills are sensitive to overload
- Listen for chatter — if present, reduce speed by 15% and increase feed by 10%
Post-Machining Care
- Clean tool immediately after use with soft brush and alcohol
- Inspect cutting edges under 10x magnification for wear or chipping
- Store in original packaging or foam insert to prevent edge damage
- Re-sharpen only by authorized Kyocera service centers
- Replace tool when flank wear exceeds 0.1 mm or edge chipping is visible
Toolholder Compatibility
| Recommended Collet System | ER11 / ER16 Precision Collet (Class 1, 0.005 mm runout) |
| Alternative Holders | Hydraulic chuck, Shrink-fit chuck, Milling chuck |
| Minimum Machine Taper | BT30 / HSK32 |
| Max Runout at Tool Tip | 0.005 mm (0.003 mm preferred for micro-drilling) |
| Clamping Length | Minimum 2.5x shank diameter |
| Projection Length | Keep to minimum; max 4x tool diameter unsupported |
| Coolant Through | Compatible with internal coolant holders (0.8 mm min orifice) |
| Balancing Grade | G2.5 at 20,000 rpm (or better for high-speed spindles) |
Compatible Toolholder Manufacturers
Collet Chucks
ER11, ER16, ER20, ER25 (DIN 6499)
Hydraulic Chucks
HydroForce, Tendo, Tribos
Shrink Fit
PowerShrink, ThermoGrip (HAIMER)
Specialized
Micro-drill holders with runout adjustment
Packaging & Ordering Information
| Packaging Type | Individual plastic tube with foam insert |
| Package Dimensions | 80 × 15 × 15 mm (L × W × H) |
| Package Weight | 12 g (including tool) |
| Label Information | MPN, Diameter, Grade, Batch Number, Barcode (EAN-13) |
| Minimum Order Quantity | 1 piece |
| Standard Pack Quantity | 1 piece (individual packaging) |
| Master Carton | 50 pieces (bulk orders) |
| Storage Conditions | Dry environment, 10–30°C, humidity < 60% RH |
| Shelf Life | Indefinite when stored properly (carbide is chemically stable) |
| Country of Manufacture | Japan |
Catalog Meta Data
| Catalog Series | Kyocera SGM Micro-Drill Series |
| Catalog Page Reference | 2026 Precision Tools Catalog, Section 4.2 (Micro-Drills) |
| ECCN Classification | 1C002.b (Export Control Classification Number) |
| HS Code | 8207.50.00 (Interchangeable tools for rock drilling) |
| UNSPSC Code | 23241600 (Drills and drill bits) |
| RoHS Compliance | Compliant (2011/65/EU, 2015/863/EU amendments) |
| REACH Compliance | Compliant — no SVHCs above 0.1% w/w |
| Conflict Minerals | CFSI-compliant smelters and refiners |
| ISO 9001:2015 | Manufactured under certified quality management system |
| Environmental Policy | Kyocera Green Philosophy — minimal environmental impact |
| Warranty Period | 12 months from date of purchase against manufacturing defects |
| Traceability | Laser-etched batch code on shank for full manufacturing traceability |
✓ 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.
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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
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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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✓ Flat Worldwide Shipping Rate: USD $50
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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.
