Kyocera SGM PR1535 SGM00909 4FL BN Endmill - CNC Milling
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM00909
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Product Overview
The SGM00909 is a premium solid carbide ball-nose endmill from Kyocera's SGM series, featuring a 0.032 inch (Ø0.813 mm) cutting diameter. Engineered with PR1535 ultra-fine grain carbide substrate and advanced PVD coating, this 4-flute design delivers exceptional performance in high-precision CNC milling operations. The ball-nose geometry is optimized for 3D contouring, die/mold finishing, and complex surface machining where mirror-finish quality and dimensional accuracy are critical.
ISO Designation Breakdown
| Position | Code | Description |
|---|---|---|
| Tool Category | E | Solid Carbide Endmill |
| Cutting Diameter | 0032 | 0.032 in (0.813 mm) |
| Shank Diameter | 0125 | 0.125 in (3.175 mm) |
| Overall Length | 157 | 1.57 in (39.88 mm) |
| Nose Type | BN | Ball Nose (Full Radius) |
| Grade | PR1535 | Ultra-fine Grain Carbide + PVD TiAlN |
Full ISO Reference: E0032-0125-157-BN-PR1535
Engineering Dimensions & Geometry
| Parameter | Value (inch) | Value (mm) | Tolerance |
|---|---|---|---|
| Cutting Diameter (D1) | 0.032 | 0.8128 | h5 (-0.0004 / -0.0008) |
| Shank Diameter (D2) | 0.125 | 3.1750 | h6 |
| Overall Length (L1) | 1.57 | 39.88 | ±0.005 |
| Flute Length (L2) | 0.094 | 2.388 | +0.000 / -0.003 |
| Corner Radius (R) | 0.0160 | 0.4064 | ±0.0002 |
| Helix Angle | 30° | — | ±1° |
| Number of Flutes | 4 | — | — |
| Core Diameter Ratio | 0.65 | — | ±0.02 |
Grade Details — Key Grade Characteristics
The PR1535 grade utilized in the SGM00909 represents Kyocera's advanced carbide technology platform:
- Substrate: Ultra-fine grain tungsten carbide (0.5 μm grain size) with 12% cobalt binder for optimal hardness-toughness balance
- Coating: Multi-layer PVD TiAlN (Titanium Aluminum Nitride) with nano-layered architecture, 3.5 μm total thickness
- Hardness: 92.5 HRA (1530 HV30) — ideal for hardened steel and high-speed applications
- Transverse Rupture Strength: 4200 MPa — exceptional resistance to chipping and micro-fracture
- Oxidation Resistance: Stable up to 900°C (1652°F) — enables dry machining and high-speed cutting
- Coating Adhesion: HF1 rating per ISO 26443 — superior coating bond strength prevents flaking
- Surface Finish: Mirror-polished flute surface (Ra 0.1 μm) minimizes built-up edge and improves chip flow
Grade Comparison Matrix
| Grade | Substrate | Coating | Hardness Range | Wear Resistance |
|---|---|---|---|---|
| PR1535 ★ | Ultra-fine grain | PVD TiAlN | 45–55 HRC | High |
| PR1725 | Sub-micron | PVD TiSiN | 50–60 HRC | Very High |
| PR1215 | Fine grain | PVD TiN | <45 HRC | Standard |
| PR1530 | Ultra-fine grain | PVD AlCrN | 45–55 HRC | High |
★ = Grade used in this product. PR1535 offers the best balance of wear resistance and toughness for general precision milling.
Chipbreaker Profile
The SGM series features an optimized flute geometry designed specifically for micro-machining applications:
- Flute Profile: Parabolic helix with variable core thickness for progressive chip evacuation
- Helix Angle: 30° constant helix — minimizes vibration and ensures smooth cutting action
- Rake Angle: 8° positive rake on peripheral cutting edge — reduces cutting forces and heat generation
- Clearance Angle: 12° primary clearance + 25° secondary clearance — prevents rubbing and improves surface finish
- Chip Pocket Volume: Optimized for 0.032in diameter — prevents chip packing in deep cavity machining
- Edge Preparation: Micro-honed cutting edge (0.003–0.005 mm radius) — enhances edge stability without sacrificing sharpness
- Center Cutting: Yes — capable of direct plunging and ramping operations
Recommended Applications & Workpiece Materials
| Material Group | ISO Code | Machinability | Application Notes |
|---|---|---|---|
| Carbon Steels | P1-P3 | Excellent | First choice for general machining |
| Alloy Steels | P4-P5 | Excellent | High-speed finishing capability |
| Stainless Steels | M1-M2 | Very Good | Reduced built-up edge tendency |
| Cast Iron | K1-K3 | Good | Use compressed air for chip removal |
| Aluminum Alloys | N1-N3 | Very Good | Polished flute surface prevents adhesion |
| Titanium Alloys | S1-S2 | Good | Low cutting speed recommended |
| Hardened Steel (45-55 HRC) | H1-H2 | Very Good | Optimized for hard milling |
Application Map by Operation
| Operation Type | Suitability | Technical Guidance |
|---|---|---|
| 3D Contouring | Excellent | Optimal chip evacuation, smooth surface finish |
| Slot Milling | Good | Use reduced radial engagement for best results |
| Ramping | Very Good | Max ramp angle 3° recommended |
| Plunging | Good | Center-cutting design allows direct plunging |
| Profiling | Excellent | High precision wall finishing capability |
| Trochoidal Milling | Very Good | Ideal for high-efficiency slotting |
Recommended Cutting Conditions
Parameters below are starting recommendations. Adjust based on machine rigidity, workpiece fixturing, and coolant strategy.
| Workpiece Material | Cutting Speed (SFM) | Feed per Tooth (in) | Axial Depth (in) | Radial Depth (in) |
|---|---|---|---|---|
| Carbon Steel (AISI 1045) | 80 | 0.0008 | 0.012 | 0.004 |
| Stainless Steel (304) | 60 | 0.0006 | 0.010 | 0.003 |
| Tool Steel (H13) | 50 | 0.0005 | 0.008 | 0.003 |
| Aluminum (6061) | 120 | 0.0012 | 0.015 | 0.006 |
| Titanium (Ti-6Al-4V) | 40 | 0.0004 | 0.006 | 0.002 |
Operating Guidelines
- Runout Tolerance: Maintain tool runout below 0.0002 in (5 μm) for optimal tool life and surface finish
- Coolant Recommendation: Oil mist or minimum quantity lubrication (MQL) preferred for micro-machining; flood coolant acceptable for larger depths
- Entry Strategy: Use helical ramp entry (max 3° ramp angle) or trochoidal path to avoid shock loading
- Stepover for Finishing: 0.0004–0.0008 in (10–20 μm) for mirror-finish surfaces; 0.001–0.002 in for standard finishing
- Tool Overhang: Minimize overhang to 4× diameter or less; use shrink-fit or hydraulic chucks for best results
- Spindle Speed: Calculate RPM from SFM: RPM = (SFM × 3.82) / 0.032in. Ensure spindle capability exceeds required RPM
- Chip Load: Start at 50% of recommended feed for first trial; increase gradually while monitoring tool wear
- Tool Inspection: Inspect under 20× magnification after initial run; look for uniform wear land or coating integrity
Toolholder Compatibility
| Holder Type | Shank Diameter | Clamping Force | Recommended For |
|---|---|---|---|
| Shrink Fit Holder | 0.125 in | High (4–6 MPa) | High-speed finishing, best runout control |
| Hydraulic Chuck | 0.125 in | Medium-High | General purpose, vibration damping |
| Collet Chuck (ER16/ER20) | 0.125 in | Medium | Standard milling, good accessibility |
| Milling Chuck | 0.125 in | High | Heavy roughing, high torque transmission |
Note: Ensure holder TIR (Total Indicated Runout) is less than 0.0002 in at the tool tip for micro-machining applications.
Packaging & Ordering Information
| Item | Details |
|---|---|
| Manufacturer Part Number | SGM00909 |
| Packaging Type | Individual plastic tube with foam insert + barcode label |
| Quantity per Package | 1 piece |
| Minimum Order Quantity | 1 piece |
| Country of Manufacture | Japan |
| Warranty | Full manufacturer warranty against material and workmanship defects |
| Traceability | Laser-marked with batch code and production date on shank |
Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Series | SGM — Solid Carbide Micro Endmill |
| Product Family | Ball Nose Endmills — 4 Flute |
| Catalog Page | Kyocera Precision Tools Catalog 2024, Section B, Page 142 |
| Replacement For | Standard solid carbide ball-nose endmills in 0.032in diameter range |
| Industry Standards | ISO 13399, DIN 6527, JIS B 4114 |
| Environmental Compliance | RoHS 3 compliant, REACH SVHC free |
| Quality Certification | ISO 9001:2015 (Manufacturing), ISO 14001:2015 (Environmental) |
| Last Catalog Update | 2024-Q3 |
Need application support? Our technical team can help you select the optimal cutting parameters for your specific material and machine setup. Contact us for detailed machining recommendations and custom tooling solutions.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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In-Stock Items (在庫あり):
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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。
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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.
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We bypass Western corporate sales teams and localized regional overhead costs entirely.
