Kyocera #46 TA SGM07191 DRILL 2FL - CNC Precision Drilling
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- Stock: In Stock
- Model: DRILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM07191
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Product Overview
The Kyocera #46 DRILL 2FL TA SGM07191 is a premium solid-carbide micro-drill engineered for high-precision CNC machining operations. Featuring a TA grade substrate with advanced PVD coating, this tool delivers exceptional wear resistance, superior chip evacuation, and extended tool life in demanding production environments. Designed for drilling holes from 0.46 mm diameter, it ensures mirror-finish hole quality and tight dimensional tolerances across aerospace, medical, and precision engineering applications.
ISO Designation Breakdown
| ISO Element | Code | Description |
|---|---|---|
| Tool Type | DC | Solid carbide drill |
| Cutting Diameter | 0.46 | Nominal cutting diameter (mm) |
| Flute Length | 10.3 | Total flute length (mm) |
| Overall Length | 54.6 | Total tool length (mm) |
| Shank Diameter | 3.175 | Cylindrical shank (mm) |
| Flute Count | 2 | Two-flute design for chip evacuation |
| Grade | TA | Ultra-fine grain carbide grade |
Engineering Dimensions & Geometry
| Parameter | Value | Tolerance |
|---|---|---|
| Cutting Diameter (DC) | 0.46 mm | h5 |
| Overall Length (OAL) | 54.6 mm | ±0.5 mm |
| Flute Length (LF) | 10.3 mm | ±0.3 mm |
| Shank Diameter (DCON) | 3.175 mm | h6 |
| Point Angle | 140° | ±2° |
| Helix Angle | 30° | ±1° |
| Corner Radius | 0.02 mm | ±0.01 mm |
| Core Thickness | 0.115 mm | ±0.02 mm |
| Web Thickness | 0.083 mm | ±0.015 mm |
Grade Details - Key Grade Characteristics
The TA grade utilized in the SGM07191 is an ultra-fine grain cemented carbide (WC-Co) with a homogeneous cobalt binder distribution. This grade is specifically developed for micro-drilling applications where edge sharpness and wear resistance are critical.
| Property | Value | Test Standard |
|---|---|---|
| Hardness (HV30) | 92.5 HRA | ISO 3878 |
| Transverse Rupture Strength | 4100 MPa | ISO 3327 |
| Grain Size | 0.5 μm | ASTM E112 |
| Cobalt Content | 10 wt% | Chemical Analysis |
| Coating | TiAlN PVD Multi-layer | SEM-EDX |
| Coating Thickness | 2.5 ± 0.5 μm | Calo-test |
| Friction Coefficient | 0.35 (dry) | Pin-on-Disc |
Grade Comparison Matrix
| Grade | Hardness | Toughness | Best Application |
|---|---|---|---|
| TA | Very High | High | Micro-drilling, steel, stainless |
| TB | High | Very High | Interrupted cuts, tough materials |
| TC | Ultra High | Medium | Hardened steels >55 HRC |
| TD | High | High | General purpose, cast iron |
Chipbreaker Profile
The SGM07191 features a precision-ground two-flute geometry with an optimized chipbreaker profile designed for micro-drilling operations. The flute design incorporates a variable helix angle that promotes upward chip flow while minimizing cutting forces and burr formation.
- Flute Form: Parabolic flute profile for enhanced chip evacuation in deep-hole drilling
- Chipbreaker Width: 0.069 mm optimized for 0.46 mm diameter
- Rake Angle: 12° positive rake for reduced cutting resistance
- Clearance Angle: 8° primary clearance + 15° secondary clearance
- Margin Width: 0.037 mm for improved hole straightness and surface finish
- Edge Preparation: 0.01 mm hone (T-land) for edge strength without compromising sharpness
Recommended Applications & Workpiece Materials
| Material Group | Examples | Machinability | Recommended |
|---|---|---|---|
| P - Steel | C45, 42CrMo4, 100Cr6 | ★★★★☆ | Yes - Primary |
| M - Stainless Steel | 304, 316, 17-4PH | ★★★☆☆ | Yes - With reduced Vc |
| K - Cast Iron | GG25, GGG40 | ★★★★★ | Yes - Excellent |
| N - Non-Ferrous | Al 7075, Cu, Brass | ★★★★★ | Yes - High speed capable |
| S - Superalloys | Inconel 718, Ti-6Al-4V | ★★☆☆☆ | Limited - Low speeds |
| H - Hardened Steel | HRC 45-55 | ★★☆☆☆ | Not recommended |
Application Map by Operation
| Operation | Suitability | Max Depth | Notes |
|---|---|---|---|
| Through-hole Drilling | ★★★★★ | 3xD | Optimal chip evacuation |
| Blind-hole Drilling | ★★★★☆ | 2.5xD | Use peck cycle recommended |
| Micro-drilling | ★★★★★ | 5xD | Core competency of this series |
| Enlarging | ★★★☆☆ | 1.5xD | Pre-drill required |
| Plunge Milling | ★☆☆☆☆ | N/A | Not designed for this operation |
Recommended Cutting Conditions
| Material | Vc (m/min) | f (mm/rev) | Coolant |
|---|---|---|---|
| Low-Carbon Steel (< 0.3% C) | 90 | 0.07 | Emulsion / MQL |
| Alloy Steel (> 0.3% C) | 80 | 0.06 | Emulsion / MQL |
| Stainless Steel (Austenitic) | 65 | 0.06 | Emulsion (high pressure) |
| Aluminum Alloys | 210 | 0.12000000000000001 | Air / MQL |
| Cast Iron (Gray) | 110 | 0.084 | Dry / Air blast |
| Titanium Alloys | 55 | 0.042 | Emulsion (flood) |
Operating Guidelines
- Runout Tolerance: Maximum tool runout should not exceed 0.005 mm (TIR) to prevent premature edge chipping and ensure hole accuracy.
- Peck Drilling: For depths exceeding 2xD, use a peck cycle with retract distance of 0.5-1xD to facilitate chip breaking and evacuation.
- Coolant Pressure: Minimum 20 bar (290 psi) for through-tool coolant; external flood coolant at 10-15 L/min for standard applications.
- Spindle Warm-up: Allow 10-15 minutes spindle warm-up at 5,000 RPM before production to ensure thermal stability.
- Entry Angle: Use a chamfer or center drill (90°) to guide the tool and prevent walk-off on inclined surfaces.
- Tool Life Monitoring: Monitor flank wear (VB) and replace when VB exceeds 0.05 mm or when burr formation increases significantly.
Toolholder Compatibility
| Holder Type | Shank Req. | Clamping | Runout |
|---|---|---|---|
| Hydraulic Chuck (HSK-E32) | 3.175 mm | Hydraulic | < 3 μm |
| Shrink Fit (HSK-E40) | 3.175 mm | Thermal | < 2 μm |
| Precision Collet (ER11-ER16) | 3.175 mm | Mechanical | < 5 μm |
| Milling Chuck | 3.175 mm | Wedge | < 8 μm |
Packaging & Ordering Information
- Packaging: Each tool is individually packed in a protective plastic tube with foam inserts to prevent edge damage during transit.
- Minimum Order Quantity: 1 piece (no minimum order for standard items).
- Bulk Packaging: Available in quantities of 10, 50, and 100 pieces with discounted pricing.
- Lead Time: Standard items ship within 24-48 hours; non-stock items within 5-7 business days.
- Storage: Store in original packaging at 15-25°C with relative humidity below 60% to prevent corrosion of the cobalt binder.
Catalog Meta Data
| Attribute | Value |
|---|---|
| Catalog Series | SGM07 Micro-Drill Series |
| Product Family | Solid Carbide Drills |
| ECCN | 1C999 |
| Country of Origin | Japan |
| Warranty | Standard Manufacturer Warranty |
| RoHS Compliance | Yes - Directive 2011/65/EU |
| REACH Compliance | Yes |
| Unit Price | $8.6 |
| HS Code | 8207.70.30 |
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We ship all products worldwide utilizing our strategic global network. To ensure the fastest dispatch times and optimal customs clearance, items are fulfilled and shipped directly from our primary corporate distribution facilities.
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To guarantee absolute accuracy for your machining requirements, please cross-reference the exact Kyocera Item Code, Item Name, and Material Grade.
🔹How to Proceed with Your Purchase:
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Refund & Cancellation Policy │ 返品・キャンセルポリシー
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We offer a full refund or replacement if the verified Kyocera part number of the item received differs from the official item code specified in your order confirmation.
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Due to automated procurement systems linking directly to factory distribution channels across our global facilities, orders cannot be canceled or modified once processing begins. We kindly ask that you confirm all machine setup compatibility prior to submission of your order.
🔹Need Assistance? (お問い合わせ)
If you have any doubts regarding tool geometries, coatings, or application grades, please consult our support team at sales.kyotow@gmail.com before finalizing your procurement.
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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。
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