Kyocera SGM PR1725 SGM08581 Endmill - High-Precision CNC Milling
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM08581
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Product Overview
The Kyocera SGM08581 is a precision-engineered solid carbide endmill from the SGM series, featuring a 0.0900 (2.286 mm) cutting diameter with a 0.020 (0.508 mm) corner radius. Designed with 2 flutes and manufactured using Kyocera's advanced PR1725 grade technology, this endmill delivers exceptional performance in high-precision CNC milling operations. The standard variant ensures optimal chip evacuation and surface finish quality across a wide range of workpiece materials.
ISO Designation Breakdown
The following ISO-style designation decodes the complete product specification:
| Position | Code | Meaning |
|---|---|---|
| 1-3 | SGM | Solid Carbide Endmill Series |
| 4-8 | 00900 | Cutting Diameter: 0.0900" (2.286 mm) |
| 9-11 | 2FL | Number of Flutes: 2 |
| 12-16 | 0020R | Corner Radius: 0.020" (0.508 mm) |
| 17-22 | PR1725 | Carbide Grade / Coating Specification |
Full ISO Designation: SGM-00900-2FL-0020R-PR1725
Engineering Dimensions & Geometry
| Parameter | Imperial | Metric | Tolerance |
|---|---|---|---|
| Cutting Diameter (D1) | 0.0900" | 2.286 mm | h6 |
| Corner Radius (R) | 0.020" | 0.508 mm | ±0.001" |
| Overall Length (L1) | 1.500" | 38.1 mm | ±0.002" |
| Flute Length (L2) | 0.2700" | 6.86 mm | +0.005/-0.000" |
| Shank Diameter (D2) | 1/8" | 3.175 mm | h6 |
| Neck Diameter (D3) | 0.0855" | 2.172 mm | h7 |
| Helix Angle | 30° | ±1° | |
| Rake Angle | 8° | ±1° | |
| Clearance Angle | 12° | ±1° | |
| Core Thickness | 0.0575" | 1.460 mm | — |
Grade Details – Key Grade Characteristics
The PR1725 grade employed in the SGM08581 represents Kyocera's advanced carbide technology, engineered specifically for demanding milling applications:
- Substrate: Sub-micron grain carbide with homogeneous cobalt distribution for maximum toughness and wear resistance.
- Coating: TiSiN PVD multi-layer PVD coating providing exceptional thermal stability and oxidation resistance up to 1,100°C.
- Hardness: HRA 92.5 ± 0.5, ensuring superior edge retention during extended machining cycles.
- Transverse Rupture Strength: >4,000 N/mm², delivering robust performance in interrupted cuts.
- Thermal Conductivity: 80 W/m·K, enabling efficient heat dissipation from the cutting edge.
Grade Comparison Matrix
| Property | PR1725 (This Product) | PR1210 (Aluminum) | PR1705 (Hardened Steel) |
|---|---|---|---|
| Primary Application | Stainless Steel / Titanium | Aluminum / Non-ferrous | Hardened Steel HRC 45-65 |
| Coating Type | TiSiN PVD | DLC (Diamond-Like Carbon) | TiAlSiN Nano-Composite |
| Hardness (HRA) | 92.5 | 91.0 | 93.5 |
| Max Cutting Temp | 1,100°C | 800°C | 1,200°C |
| Chip Control | Excellent | Good | Very Good |
| Surface Finish Capability | Mirror (Ra 0.2 µm) | High Gloss | Mirror (Ra 0.15 µm) |
Flute & Chipbreaker Profile
The SGM08581 features an optimized 2-flute geometry with a specialized flute profile designed for superior chip formation and evacuation:
- Flute Profile: Parabolic flute form with enhanced core thickness for rigidity in deep-pocket milling.
- Chipbreaker Geometry: Precision-ground chipbreaker grooves along the cutting edge promote controlled chip curling and fragmentation, preventing built-up edge (BUE) and ensuring smooth chip evacuation.
- Edge Preparation: Honing radius of 0.003–0.005 mm (T-land) minimizes micro-chipping while maintaining sharpness for clean shearing action.
- Surface Finish: Mirror-polished flute surfaces (Ra < 0.1 µm) reduce friction and prevent material adhesion, critical for sticky materials like stainless steel and titanium.
Recommended Applications & Workpiece Materials
This endmill is optimized for the following material groups and application scenarios:
| Material Group | Examples | Hardness Range | Performance Rating |
|---|---|---|---|
| Carbon Steel | 1045, 4140, 4340 | HRC 20-35 | ★★★★★ |
| Alloy Steel | A2, D2, H13 | HRC 30-50 | ★★★★☆ |
| Stainless Steel | 304, 316, 17-4PH | HRC 20-35 | ★★★★☆ |
| Cast Iron | Gray CI, Ductile CI | HB 180-260 | ★★★★★ |
| Titanium | Ti-6Al-4V, Ti-5Al-2.5Sn | HRC 30-36 | ★★★☆☆ |
Application Map by Operation
| Operation Type | Suitability | Recommended Conditions | Notes |
|---|---|---|---|
| Slot Milling | ✓ Excellent | ae = 0.5×D, ap = 1×D | Use climb milling for best finish |
| Profile Milling | ✓ Excellent | ae = 0.1–0.2×D, ap = 2–3×D | Ideal for complex 3D contours |
| Pocket Milling | ✓ Excellent | Trochoidal path, ae = 0.05×D | High-speed machining recommended |
| Plunge Milling | ○ Good | Reduce feed by 30% | Not a center-cutting design; ramp entry required |
| Face Milling | △ Fair | Light cuts only, ap < 0.2×D | Better suited for smaller face mills |
| Roughing | ✓ Excellent | Full slot, ae = 0.5–1×D | Robust edge withstands high mechanical loads |
| Finishing | ✓ Excellent | ae = 0.05–0.1×D, high RPM | Achieves Ra 0.2 µm surface finish |
Recommended Cutting Conditions
The following parameters are recommended starting points. Adjust based on machine rigidity, workpiece fixturing, and coolant delivery:
| Parameter | Value (Imperial) | Value (Metric) | Notes |
|---|---|---|---|
| Cutting Speed (Vc) | — | 106 m/min | For Stainless Steel |
| Spindle Speed (n) | — | 14,759 RPM | Calculated from Vc & Diameter |
| Feed per Tooth (fz) | 0.0016 in/tooth | 0.041 mm/tooth | Reduce 20% for slotting |
| Feed Rate (Vf) | 47.2 IPM | 1198.9 mm/min | Based on 2 flutes |
| Axial Depth (ap) | 0.0881" | 2.24 mm | Up to 1×D for slotting |
| Radial Depth (ae) | 0.0145" | 0.37 mm | 0.1–0.3×D for profiling |
| Coolant | External Flood or MQL (Minimum Quantity Lubrication) | Avoid thermal shock | |
Operating Guidelines
- Runout Control: Maintain total indicated runout (TIR) below 0.005 mm (0.0002") at the tool tip. Excessive runout drastically reduces tool life and surface quality.
- Tool Overhang: Minimize overhang to the shortest length practical for the operation. Use hydraulic or shrink-fit holders for maximum rigidity.
- Entry Strategy: Use helical or ramp entry at 2–5° inclination. Avoid direct plunge except with specialized plunge-mill geometries.
- Chip Evacuation: Ensure adequate coolant pressure (minimum 70 bar / 1,000 psi for through-spindle) to clear chips from the cutting zone, especially in deep pockets.
- Corner Radius Wear: Monitor corner radius wear closely; a worn corner radius increases cutting forces and can cause chatter. Replace when wear land exceeds 0.1 mm.
- Speed/Feed Ramping: Ramp up to full speed gradually over 3–5 seconds to avoid thermal shock to the carbide substrate.
Toolholder Compatibility
The SGM08581 is designed for use with standard 1/8" shank toolholders. Recommended holder types and specifications:
| Holder Type | Compatibility | Taper Size | Max Runout |
|---|---|---|---|
| Spring Collet (ER11/ER16) | ✓ Compatible | BT30 / BT40 / CAT40 | ≤ 0.010 mm |
| Hydraulic Chuck | ✓ Recommended | BT40 / HSK63A | ≤ 0.003 mm |
| Shrink-Fit Holder | ✓ Recommended | HSK63A / HSK100A | ≤ 0.003 mm |
| Milling Chuck (KM) | ✓ Compatible | KM63 / KM80 | ≤ 0.005 mm |
| Weldon Side-Lock | △ Not Recommended | — | Runout risk with small diameters |
Packaging & Ordering Information
- Packaging: Each endmill is individually sealed in a protective plastic tube with desiccant, then packed in a Kyocera-branded cardboard box with foam insert.
- Minimum Order Quantity (MOQ): 1 piece. Bulk discounts available for quantities of 10, 50, and 100+.
- Lead Time: In-stock items ship within 24–48 hours. Back-ordered items typically arrive within 5–7 business days.
- Warranty: Covered by Kyocera's standard manufacturer warranty against defects in material and workmanship.
- Storage: Store in original packaging at 15–25°C with < 60% relative humidity to prevent coating degradation.
Catalog Meta Data
| Attribute | Value |
|---|---|
| Catalog Series | SGM – Solid Carbide Micro Endmill |
| Product Family Code | SGM08581 |
| Revision Level | Rev. C (2024) |
| ISO 13399 Classification | Endmill / Solid Carbide / Corner Radius |
| DIN Standard | DIN 6527 Form K (Corner Radius) |
| JIS Standard | JIS B 4114 |
| Country of Manufacture | Japan |
| RoHS Compliance | Yes (2011/65/EU) |
| REACH Compliance | Yes (EC 1907/2006) |
✓ 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.
