Kyocera 2,3 CA115 SGM08381 DRILL 2FL - High-Speed CNC Drilling
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM08381
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Product Overview
The Kyocera 2,3 DRILL 2FL SGM08381 is a precision-engineered solid carbide micro-drill featuring grade CA115. Designed for high-speed CNC machining, this 2.3mm diameter tool delivers exceptional hole quality, dimensional accuracy, and extended tool life across demanding production environments. The optimized 2-flute geometry minimizes cutting forces and enhances chip evacuation, ensuring consistent performance in aerospace, automotive, medical, and general precision engineering applications.
ISO Designation Breakdown
| ISO Code Element | Value / Description |
| Tool Type | Solid Carbide Drill (2-Flute) |
| Nominal Diameter (D) | 2.3mm |
| Flute Count (Z) | 2 |
| Helix Angle | 30° |
| Point Angle | 140° |
| Shank Type | Cylindrical (h5) |
| Coolant Supply | External |
Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
| Nominal Diameter (D) | 2.3mm | h5 |
| Flute Length (Lf) | 27.6 mm | +0.3 / -0.1 mm |
| Overall Length (L) | 35.6 mm | ±0.5 mm |
| Shank Diameter (ds) | 3.0 mm | h6 |
| Point Angle (κr) | 140° | ±2° |
| Helix Angle | 30° | ±1° |
| Core Thickness Ratio | 0.22 × D | — |
| Margin Width | 0.08 × D | ±0.01 mm |
Grade Details – Key Grade Characteristics
Grade CA115 is a premium sub-micron grain carbide substrate with advanced PVD multi-layer coating technology. Engineered specifically for small-diameter drilling applications, this grade offers:
- Micro-grain structure: Sub-0.5 μm WC grain size for superior edge sharpness and wear resistance.
- PVD Coating: TiAlN-based multi-layer coating provides exceptional thermal stability up to 900°C and reduced built-up edge formation.
- High hardness: HRA 92.5 for maintained cutting edge integrity at elevated speeds.
- Optimized cobalt binder: 8% Co content balances toughness and hardness for intermittent cutting conditions.
- Low friction coefficient: Minimizes heat generation and extends tool life by up to 40% compared to uncoated substrates.
Grade Comparison Matrix
| Property | CA115 (This Product) | CA115 (Standard) | PR1225 (General Purpose) |
| Coating Type | TiAlN PVD Multi-layer | TiAlN Mono-layer | TiSiN PVD |
| Hardness (HRA) | 92.5 | 91.8 | 92.2 |
| Transverse Rupture Strength | 4,200 MPa | 3,800 MPa | 4,000 MPa |
| Max Operating Temp | 900°C | 800°C | 850°C |
| Ideal Application | Micro-precision drilling, HSM | General steel drilling | Stainless steel, mixed materials |
Chipbreaker Profile
The 2.3mm SGM series features a specialized micro-chipbreaker geometry optimized for small-diameter drilling. The flute profile incorporates a variable helix design with polished rake surfaces to ensure smooth chip evacuation and prevent chip packing in deep-hole applications.
| Chipbreaker Parameter | Specification |
| Rake Angle (γ) | 12° positive |
| Flute Form | Parabolic with polished surface (Ra 0.1 μm) |
| Chipbreaker Type | Micro-groove (0.05 mm depth) |
| Chip Curl Radius | 1.5 – 2.0 mm |
Recommended Applications & Workpiece Materials
- Carbon Steels: C35, C45, C60 – Excellent chip control and surface finish quality.
- Alloy Steels: 42CrMo4, 16MnCr5, 20MnCr5 – Ideal for case-hardened and tempered components.
- Stainless Steels: 304, 316, 430 – Reduced work-hardening tendency due to optimized point geometry.
- Cast Iron: GGG40, GGG50 – Suitable for short-chipping grey and nodular cast irons.
- Aluminum Alloys: AlSi10Mg, AlCuMgPb – Polished flutes prevent material adhesion.
- Titanium Alloys: Ti-6Al-4V – Reduced heat buildup enables controlled drilling depths up to 3×D.
Application Map by Operation
| Operation Type | Suitability | Max Depth | Notes |
| Through-hole Drilling | ★★★★★ Excellent | 5×D | Optimal chip evacuation |
| Blind-hole Drilling | ★★★★☆ Very Good | 3×D | Use peck cycle for depths >2×D |
| Cross-hole Drilling | ★★★☆☆ Good | 2×D | Reduce feed by 20% |
| Stack Drilling | ★★★★☆ Very Good | — | Ensure clamping rigidity |
| Enlarging / Reaming | ★★☆☆☆ Fair | 1×D | Not recommended as primary use |
Recommended Cutting Conditions
| Workpiece Material | Cutting Speed Vc (m/min) | Spindle Speed n (rpm) | Feed f (mm/rev) | Feed Rate Vf (mm/min) |
| Carbon Steel (C35) | 80 – 100 | 11,071 – 13,838 | 0.0690 | 763.9 – 954.9 |
| Alloy Steel (42CrMo4) | 70 – 90 | 9,687 – 12,454 | 0.0690 | 668.4 – 859.4 |
| Stainless Steel (304) | 60 – 80 | 8,303 – 11,042 | 0.0552 | 458.3 – 613.0 |
| Aluminum Alloy (AlSi10Mg) | 120 – 150 | 16,607 – 20,758 | 0.0828 | 1375.1 – 1718.9 |
| Cast Iron (GGG50) | 90 – 110 | 12,454 – 15,222 | 0.0690 | 859.4 – 1050.4 |
Note: Values are starting recommendations. Adjust based on machine rigidity, coolant concentration, and workpiece clamping conditions. For depths exceeding 3×D, reduce Vc by 15% and use peck drilling cycle.
Operating Guidelines
- Run-out Tolerance: Ensure spindle TIR ≤ 5 μm. Excessive run-out dramatically reduces tool life in micro-diameter drilling.
- Coolant Supply: Use high-pressure coolant (min. 20 bar) with 6–8% soluble oil emulsion for steels. For aluminum, use neat oil or synthetic coolant to prevent built-up edge.
- Peck Drilling: For holes deeper than 3×D, employ a peck cycle with 1×D peck depth and 0.3×D retract to break chips.
- Entry Angle: Drill perpendicular to surface (±1°). Use spot drilling or centering for inclined entry angles > 3°.
- Pre-drilling: Not required for standard through-holes up to 3×D depth. For cross-holes, reduce feed by 20% at intersection.
- Tool Overhang: Minimize overhang to 4×D maximum. Use collet chucks or hydraulic holders for best results.
- Re-sharpening: Not recommended due to micro-diameter geometry complexity. Replace tool when flank wear exceeds 0.05 mm.
Toolholder Compatibility
| Holder Type | Recommended Model | Clamping Range | Application Notes |
| ER Collet Chuck | ER11, ER16 (AA precision) | 1.0 – 3.0 mm | Most economical; ensure collet accuracy ≤ 10 μm |
| Hydraulic Expansion Chuck | HSK-A63 Hydro | 3.0 – 6.0 mm | Best damping; ideal for high-speed machining |
| Shrink Fit Holder | HSK-E40 Shrink | 3.0 – 6.0 mm | Highest run-out accuracy (≤ 3 μm) |
| Weldon Side-Lock | Not Recommended | — | Risk of shank deformation on micro-tools |
Packaging & Ordering Information
| Item | Details |
| MPN (Manufacturer Part Number) | SGM08381 |
| Packaging Unit | 1 piece per plastic tube with foam insert |
| Minimum Order Quantity | 1 piece |
| Bulk Packaging | 10 pieces per master carton (anti-static foam) |
| Warranty | Full manufacturer warranty against material and manufacturing defects |
| Certification | ISO 9001:2015 manufacturing; RoHS compliant |
Catalog Meta Data
| Field | Value |
| Catalog Series | SGM Micro-Drill Series |
| Product Family | Solid Carbide Drills – 2 Flute |
| Diameter Range | 2.25 mm – 2.70 mm |
| Industry Sectors | Aerospace, Automotive, Medical, Electronics, Mold & Die |
| Replacement Strategy | Index by MPN; no reconditioning service available for micro-diameter |
| Last Catalog Update | 2026-Q2 |
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 delivery efficiency. For application-specific support, contact our technical engineering team.
✓ 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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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.
