Kyocera 0.0070 PR1535 SGM01158 ENDMILL 3FL SQ - Micro-Mill
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM01158
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Product Overview
The Kyocera 0.0070 ENDMILL 3FL SQ (SGM01158) is a premium solid carbide micro endmill engineered for high-precision CNC milling operations. Manufactured in Japan to exacting OEM standards, this 3-flute square-end design delivers exceptional surface finish quality, tight dimensional tolerances, and extended tool life in demanding production environments. The 0.0070" diameter makes it ideal for micro-machining applications where accuracy and repeatability are paramount.
ISO Designation Breakdown
| ISO Catalog Code | SGM-00070-3F-SQ |
| Series Designator | SGM – Solid Carbide Micro Endmill |
| Diameter Class | 0.0070" (0.178 mm) |
| Flute Count | 3F – 3 Flutes |
| End Geometry | SQ – Square End (0° Corner Radius) |
| Coating / Grade | TA – PR1535 Submicron Carbide |
Engineering Dimensions & Geometry
| Parameter | Symbol | Value (inch) | Value (mm) | Tolerance |
|---|---|---|---|---|
| Cutting Diameter | D1 | 0.0070 | 0.1778 | h6 |
| Overall Length | L1 | 1.500 | 38.10 | ±0.005 |
| Flute Length | L2 | 0.050 | 1.27 | +0.010/-0.000 |
| Shank Diameter | D2 | 0.125 | 3.17 | h5 |
| Corner Radius | rε | 0.000 | 0.000 | ±0.001 |
| Helix Angle | λs | 42° | — | ±2° |
| Number of Flutes | Z | 3 | — | — |
Grade Details – Key Grade Characteristics
The PR1535 grade is a submicron cemented carbide substrate developed specifically for micro-machining applications. Key characteristics include:
- Grain Size: 0.5 μm submicron tungsten carbide structure for superior edge retention
- Co-Binder Content: Optimized cobalt matrix (8–10%) balancing hardness and toughness
- Hardness: 92.0 HRA / 1600 HV30 – ideal for hardened and abrasive workpiece materials
- Transverse Rupture Strength: >3,800 MPa – resists chipping in interrupted cuts
- Coating: Advanced TA multi-layer PVD coating for reduced friction and heat dissipation
- Thermal Stability: Effective up to 900°C cutting temperature
Grade Comparison Matrix
| Grade | Substrate | Primary Use | Workpiece Range | Wear Resistance |
|---|---|---|---|---|
| PR1535 | Submicron Carbide | General Purpose | Steel, SS, Ti | High |
| PR1705 | Ultra-Fine Carbide | Hardened Steel | HRC 45-55 | Very High |
| PR1205 | Micro-Grain Carbide | Aluminum | Non-Ferrous | High |
Chipbreaker Profile
Although this is a solid carbide endmill, the flute geometry incorporates an optimized chip-evacuation profile equivalent to a chipbreaker design:
- Flute Form: Parabolic core design with variable helix for stable chip formation
- Core Diameter: 0.0046" (52% of cutting diameter) for rigidity
- Chip Pocket: Deep, polished flutes ensure rapid chip evacuation upward and away from the cut zone
- Edge Preparation: Micro-honed primary cutting edge (0.003–0.005 mm hone) prevents burr formation
- Rake Angle: Positive 8° radial rake combined with 4° axial rake for low cutting forces
- Chip Thinning: 3-flute configuration naturally thins chips, improving surface finish at high feed rates
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Hardness (HB/HRC) | Machinability | Recommended |
|---|---|---|---|---|
| Carbon & Alloy Steel | P.1 – P.6 | < 300 HB | ★★★★☆ | Yes |
| Stainless Steel (Austenitic) | M.1 – M.2 | < 280 HB | ★★★★☆ | Yes |
| Stainless Steel (Martensitic) | M.3 – M.4 | < 350 HB | ★★★☆☆ | Yes |
| Titanium & Ti-Alloys | S.1 – S.4 | < 40 HRC | ★★★☆☆ | Yes |
| Hardened Steel | H.1 – H.3 | 45–55 HRC | ★★☆☆☆ | Limited |
| Aluminum & Al-Alloys | N.1 – N.3 | < 150 HB | ★★★★★ | Yes* |
*Aluminum machining may require uncoated variant or polished flutes to prevent built-up edge (BUE). Consult Kyocera application engineering for guidance.
Application Map by Operation
| Operation | Suitability | Max Depth (ap) | Max Width (ae) | Notes |
|---|---|---|---|---|
| Slotting | ★★★★☆ | 1.0 × D | 1.0 × D | Full-width engagement; reduce feed 20% |
| Profiling / Side Milling | ★★★★★ | 1.5 × D | 0.3 × D | Optimal chip evacuation; high surface quality |
| Pocketing | ★★★★☆ | 1.0 × D | 0.5 × D | Use trochoidal path for deep pockets |
| Plunging | ★★☆☆☆ | 0.3 × D | — | Not center-cutting; ramp entry recommended |
| 3D Contouring | ★★★★★ | 0.5 × D | 0.1 × D | Excellent for mold & die finishing |
| High-Feed Milling | ★★★☆☆ | 0.2 × D | 0.8 × D | Micro diameter limits chip volume |
Recommended Cutting Conditions
Values shown are starting recommendations. Adjust based on machine rigidity, coolant delivery, and workpiece condition.
| Workpiece Material | Cutting Speed Vc (m/min) | Feed per Tooth fz (mm) | Axial Depth ap | Radial Depth ae |
|---|---|---|---|---|
| Carbon Steel (C45) | 40-80 | 0.0005-0.0015 | 0.5D | 0.15D |
| Stainless Steel (304) | 60–90 | 0.0008–0.002 | 0.5D | 0.2D |
| Titanium (Ti-6Al-4V) | 30–50 | 0.0005–0.001 | 0.5D | 0.15D |
| Hardened Steel (HRC 50) | 20–40 | 0.0003–0.0008 | 0.3D | 0.1D |
| Aluminum (6061-T6) | 200–300 | 0.003–0.006 | 1.0D | 0.5D |
Operating Guidelines
- Runout Check: Maintain TIR < 0.005 mm (0.0002") at the tool tip. Excessive runout causes uneven wear and premature breakage in micro-diameter tools.
- Spindle Speed: Calculate RPM from Vc and diameter: RPM = (Vc × 1000) / (π × D mm). For 0.0070" at 100 m/min, target ≈ 179,026 RPM.
- Coolant: Flood coolant or high-pressure through-spindle coolant (MQL acceptable) is strongly recommended to control heat and flush chips from the micro-flutes.
- Entry Strategy: Avoid direct plunging. Use ramp or helical entry with maximum 2°–3° ramp angle to protect the delicate corner.
- Chip Evacuation: Ensure adequate air blast or coolant flow to prevent chip re-cutting, which is the leading cause of micro-endmill failure.
- Tool Life Indicator: Monitor flank wear (VB). Replace when VB > 0.05 mm or when surface finish degrades below Ra 0.4 μm.
- Storage: Store in original packaging; avoid contact between cutting edges and hard surfaces. Handle with foam-lined holders.
Toolholder Compatibility
| Holder Type | Shank Fit | Runout Capability | Recommended | Notes |
|---|---|---|---|---|
| Precision Collet Chuck (ER11/ER16) | 0.125" shank | < 0.005 mm | Yes | Most common; use high-precision collet |
| Shrink-Fit Holder | 0.125" shank | < 0.003 mm | Yes | Best for high-speed micro-machining |
| Hydraulic Expansion Chuck | 0.125" shank | < 0.003 mm | Yes | Excellent damping; premium choice |
| Weldon Side-Lock | 0.125" shank | < 0.010 mm | No | Poor runout; risk of tool deflection |
| Milling Chuck (Power Milling) | 0.125" shank | < 0.008 mm | Limited | Acceptable for roughing only |
Packaging & Ordering Information
| MPN / Order Code | SGM01158 |
| Packaging Unit | 1 piece per plastic protective tube with foam insert |
| Label Information | Kyocera logo, MPN, diameter, flute count, barcode, lot number, country of origin (Japan) |
| Minimum Order Quantity | 1 piece |
| Bulk Packaging | 10 pieces per inner box; 100 pieces per master carton (institutional orders) |
| Warranty | Full manufacturer warranty against material and workmanship defects |
Catalog Meta Data
| Product Series | SGM – Solid Carbide Micro Endmill Series |
| Catalog Page | Page 111 |
| Catalog Revision | 2024/01 |
| Manufacturer | Kyocera Corporation, Japan |
| Country of Origin | Japan |
| Harmonized Code | 8207.70.60 |
| ECCN | EAR99 |
Disclaimer: All technical data and recommendations are provided as general guidance. Actual machining performance depends on machine condition, workpiece material variability, coolant quality, and operator skill. Always perform test cuts and verify dimensions before production runs. Kyocera and Kyotow.com are not liable for tool failure resulting from improper application or machine setup.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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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.
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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. -
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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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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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