Kyocera 0.0250 PR1535 SGM01176 3FL Endmill - CNC Milling
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM01176
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Product Overview
The Kyocera SGM01176 is a premium solid carbide 3-flute square endmill featuring a 0.0250" (0.635 mm) cutting diameter and PR1535 PVD-coated grade substrate. Engineered for high-precision CNC milling operations, this micro-endmill delivers exceptional dimensional accuracy, superior surface finish, and extended tool life in demanding production environments. The optimized flute geometry ensures efficient chip evacuation even at high-speed machining parameters, making it the ideal choice for micro-machining applications across aerospace, medical device, and precision mold manufacturing sectors.
ISO Designation Breakdown
| ISO Element | Code | Description |
|---|---|---|
| Tool Type | SGM | Solid Carbide Micro Endmill Series |
| Diameter | 0.0250" | Nominal Cutting Diameter (inch) |
| Flutes | 3FL | Three Flute Design |
| End Type | SQ | Square End (0° Corner Radius) |
| Shank Type | TA | Standard Cylindrical Shank |
| Grade | PR1535 | PVD Multi-Layer Coated Carbide |
| MPN | SGM01176 | Manufacturer Part Number |
Engineering Dimensions & Geometry
| Parameter | Value | Tolerance | Notes |
|---|---|---|---|
| Cutting Diameter (D1) | 0.0250" (0.635 mm) | h6 (-0.004/-0.009 mm) | Precision ground |
| Overall Length (L1) | 1.25" | ±0.005" | Standard stub length |
| Flute Length (L2) | 0.075" | ±0.003" | 3×D engagement |
| Shank Diameter (D2) | 0.0312" | h5 | Standard cylindrical |
| Corner Radius (R) | 0.0" (Square) | ±0.001" | Sharp corner profile |
| Helix Angle | 30° | ±1° | Optimized for chip flow |
| Core Diameter | ~0.0163" | — | High rigidity core |
| Rake Angle | +8° | ±2° | Positive for shearing action |
Grade Details – Key Grade Characteristics
The PR1535 grade represents Kyocera's advanced PVD multi-layer coating technology, specifically engineered for high-performance steel and stainless steel machining. This grade combines an ultra-fine tungsten carbide substrate (0.6 μm grain size) with a TiAlN-based nano-layered coating that provides exceptional thermal stability and oxidation resistance up to 900°C.
| Characteristic | Specification | Performance Impact |
|---|---|---|
| Substrate Hardness | 92.0 HRA | Superior wear resistance in continuous cuts |
| Transverse Rupture Strength | 3,800 MPa | High edge stability under intermittent cutting |
| Coating Type | (Ti,Al)N + TiSiN Nano-Layer | Extreme heat resistance; reduced built-up edge |
| Coating Thickness | 2.5 ± 0.3 μm | Optimal balance of protection and edge sharpness |
| Friction Coefficient | 0.35 (vs. steel) | Reduced cutting forces and heat generation |
| Oxidation Onset | 900°C | Enables dry and high-speed machining |
Grade Comparison Matrix
| Property | PR1535 (This Tool) | PR1725 | PR1210 |
|---|---|---|---|
| Primary Application | Steel / SS | Hardened Steel | General Purpose |
| Hardness (HRA) | 92.0 | 92.5 | 91.5 |
| Coating Layers | Nano Multi-Layer | Nano Multi-Layer | Monolayer TiAlN |
| Max Cutting Temp | 900°C | 950°C | 800°C |
| Best For | High-speed finishing | Hard material milling | Roughing & general use |
Chipbreaker Profile
The SGM series features a precision-ground flute profile with an optimized chipbreaker geometry specifically designed for micro-machining applications. The three-flute configuration provides a flute-to-flute spacing of 120°, ensuring balanced cutting forces and minimal tool deflection. The chipbreaker groove depth is calibrated to the tool diameter to promote controlled chip curling and evacuation without compromising edge integrity.
| Feature | Specification |
|---|---|
| Flute Count | 3 (Three-Flute) |
| Flute Spacing | 120° ± 1° |
| Chipbreaker Depth | 0.02 × D1 |
| Chipbreaker Width | 0.08 × D1 |
| Land Width | 0.15 × D1 |
| Edge Preparation | T-land + 0.02 mm hone |
Recommended Applications & Workpiece Materials
The PR1535 grade combined with the 3-flute square geometry makes this endmill exceptionally versatile across a wide range of materials and applications. The tool is optimized for finishing and semi-finishing operations where surface quality and dimensional precision are critical.
| Material Group | Examples | Hardness Range | Machinability Index |
|---|---|---|---|
| Carbon Steel | 1045, 4140, 4340 | ≤ 35 HRC | ★★★★★ Excellent |
| Alloy Steel | 8620, 52100 | ≤ 40 HRC | ★★★★★ Excellent |
| Stainless Steel | 304, 316, 17-4PH | ≤ 35 HRC | ★★★★☆ Very Good |
| Tool Steel | H13, D2, A2 | ≤ 45 HRC | ★★★★☆ Very Good |
| Cast Iron | Gray CI, Ductile CI | ≤ 250 HB | ★★★☆☆ Good |
| Titanium | Ti-6Al-4V | ≤ 35 HRC | ★★★☆☆ Good (reduced speeds) |
Application Map by Operation
| Operation | Suitability | Recommended Parameters | Notes |
|---|---|---|---|
| Slotting (axial) | ★★★☆☆ | ap = 1×D, ae = 1×D | Limited by chip evacuation; use peck cycle |
| Profiling (radial) | ★★★★★ | ap = 1-2×D, ae = 0.1-0.3×D | Optimal for finishing passes |
| Pocketing | ★★★★☆ | ap = 0.5-1×D, ae = 0.3-0.5×D | Use trochoidal path for best results |
| High-Feed Milling | ★★★☆☆ | ap = 0.1×D, ae = 0.8-1.0×D | Reduce feed to prevent edge chipping |
| Plunging | ★★☆☆☆ | ap = 0.1×D per pass | Not center-cutting; ramp entry required |
| 3D Contouring | ★★★★★ | ap = 0.05-0.2×D, ae = 0.05-0.1×D | Excellent for mold & die finishing |
Recommended Cutting Conditions
Parameters below are starting recommendations for carbon and alloy steels using flood coolant or minimum quantity lubrication (MQL). Adjustments may be required based on machine rigidity, workpiece fixturing, and desired surface finish.
| Parameter | Symbol | Value Range | Unit |
|---|---|---|---|
| Cutting Speed | Vc | 30-60 | m/min |
| Spindle Speed | n | 15,038 – 30,076 | RPM |
| Feed per Tooth | fz | 0.001-0.003 | mm/tooth |
| Axial Depth of Cut | ap | 0.005-0.010 | inch |
| Radial Depth of Cut | ae | 0.005-0.010 | inch |
| Coolant Recommendation | — | Flood / MQL / Air Blast | — |
Operating Guidelines
- Runout Control: Maintain TIR (Total Indicator Reading) below 0.005 mm at the tool tip. Excessive runout will cause uneven wear and premature edge failure.
- Tool Overhang: Minimize overhang to the shortest practical length. For every 1×D increase in overhang, reduce cutting speed by 10% to maintain stability.
- Entry Strategy: Use helical or ramp entry at 1-2° angle. Avoid direct plunging as this tool is not center-cutting optimized.
- Chip Evacuation: Ensure adequate coolant flow directed at the cutting zone. For deep pockets, consider through-spindle coolant (TSC) if available.
- Speed Ramp: When starting a new job, begin at 70% of recommended Vc and increase in 10% increments while monitoring tool wear and surface finish.
- Tool Life Monitoring: Inspect flank wear after every 30 minutes of cutting time. Replace tool when flank wear exceeds 0.1 mm or when surface finish degrades.
Toolholder Compatibility
This endmill is compatible with standard collet and hydraulic toolholders designed for micro-machining. Ensure the toolholder bore matches the shank diameter precisely to maintain concentricity.
| Toolholder Type | Compatibility | Recommended Brand | Notes |
|---|---|---|---|
| ER Collet Chuck | ER11 / ER16 | Any precision brand | Use ultra-precision collet (≤ 0.005 mm runout) |
| Hydraulic Chuck | Hydro mini series | Schunk, Haimer | Best for high-speed finishing |
| Shrink Fit | Mini shrink series | Haimer, Bilz | Excellent rigidity and balance |
| Milling Chuck | Not recommended | — | Excessive runout for micro-tools |
Packaging & Ordering Information
| Item | Details |
|---|---|
| Manufacturer Part Number | SGM01176 |
| Packaging Type | Individual plastic protective tube with foam insert |
| Quantity per Package | 1 piece |
| Minimum Order Quantity | 1 piece |
| Bulk Packaging | Available in quantities of 10, 50, and 100 (contact sales) |
| Warranty | Standard manufacturer warranty against material defects |
Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Series | SGM – Solid Carbide Micro Endmill |
| Catalog Page | Kyocera Micro-Tool Catalog 2024, Section 3.2 |
| ECCN Classification | EAR99 |
| Country of Origin | Japan |
| Harmonized Code | 8207.70.60 |
| RoHS Compliance | Yes – Lead-free substrate and coating |
| REACH Compliance | Yes – No SVHC substances above threshold |
✓ 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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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.
