Kyocera 0.056 BN SGM00933 4FL Endmill - CNC Milling
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM00933
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1. Product Overview
The Kyocera 0.056 BN SGM00933 is a premium solid carbide 4fl endmill engineered for precision CNC milling operations. This 0.056-inch diameter ball-nose endmill features four flutes with an optimized helix angle of 35°, delivering exceptional surface finish quality and extended tool life in demanding machining environments. Manufactured from sub-micron grain carbide substrate, this tool is ideal for 3D profiling, cavity machining, aerospace component finishing, precision mold making.
2. ISO Designation Breakdown
| Designation Element | Value | Description |
|---|---|---|
| Manufacturer | Kyocera | Japanese precision tooling manufacturer |
| Model Code | 0.056 | Nominal cutting diameter in inches |
| Grade | BN | Ball-nose geometry with nano-PVD coating |
| MPN | SGM00933 | Manufacturer part number (SGM series) |
| Flute Count | 4FL | Four-flute design for finishing operations |
| Tool Type | Ball-Nose Endmill | Solid carbide rotary cutting tool |
3. Engineering Dimensions & Geometry
| Parameter | Specification | Tolerance |
|---|---|---|
| Cutting Diameter (D1) | 0.056" (1.422 mm) | h6 (-0.004 / -0.009 mm) |
| Corner Radius | 0.0280" (Ball Nose) | ±0.002 mm |
| Flute Length (L1) | 0.1960" | +0.3 / -0.0 mm |
| Overall Length (L) | 0.4960" | ±0.5 mm |
| Shank Diameter (D2) | 0.125" | h6 |
| Helix Angle | 35° | ±1° |
| Radial Rake Angle | +5° | ±1° |
| Core Diameter Ratio | 0.65 × D1 | — |
4. Grade Details – Key Grade Characteristics
BN Grade is a high-performance carbide grade specifically developed for precision finishing and semi-finishing applications. BN grade features a nano-layered PVD coating with exceptional hardness and heat resistance.
- Substrate: Sub-micron grain tungsten carbide (0.6 μm) with 12% cobalt binder
- Coating: Multi-layer TiAlN-based PVD coating with nano-crystalline structure
- Coating Hardness: 3,300 HV (Vickers hardness)
- Max Operating Temperature: 900°C (1,650°F)
- Friction Coefficient: 0.35 (dry machining against steel)
- Color Identification: Copper-bronze coating appearance
5. Grade Comparison Matrix
| Property | BN (This Tool) | Standard Uncoated | General Purpose Coated |
|---|---|---|---|
| Hardness (HRA) | 92.5 | 91.0 | 91.5 |
| Transverse Rupture Strength | 3,800 MPa | 3,200 MPa | 3,400 MPa |
| Wear Resistance | Excellent ★★★★★ | Good ★★★☆☆ | Very Good ★★★★☆ |
| Heat Resistance | Excellent ★★★★★ | Fair ★★☆☆☆ | Good ★★★☆☆ |
| Toughness | Very Good ★★★★☆ | Excellent ★★★★★ | Very Good ★★★★☆ |
| Recommended Speed (Vc) | 120–200 m/min | 60–100 m/min | 80–150 m/min |
6. Chipbreaker Profile
For solid carbide endmills, the flute geometry serves as the chip evacuation and formation system. The SGM00933 features:
- Flute Profile: Parabolic flute form with polished rake face (Ra 0.2 μm)
- Chip Pocket Volume: Optimized for 0.056" diameter—sufficient chip evacuation without compromising core strength
- Edge Preparation: Micro-honed cutting edge (T-land 0.02 mm × 20°) to prevent chipping
- Flute Polishing: Mirror-finish grinding to reduce built-up edge and improve surface finish
- Center Cutting: Yes—capable of plunging and ramping operations
7. Recommended Applications & Workpiece Materials
| Workpiece Material | Hardness Range | Machinability Rating | Recommended Operation |
|---|---|---|---|
| Carbon Steel (C45, C50) | < 30 HRC | ★★★★★ Excellent | Roughing, semi-finishing, finishing |
| Alloy Steel (4140, 4340) | 30–45 HRC | ★★★★☆ Very Good | Semi-finishing, finishing, profiling |
| Tool Steel (H13, D2) | 45–55 HRC | ★★★★☆ Very Good | Finishing, 3D contouring |
| Stainless Steel (304, 316) | < 25 HRC | ★★★☆☆ Good | Finishing with adequate coolant |
| Cast Iron (GG25, GGG40) | 180–260 HB | ★★★★★ Excellent | High-speed finishing, contouring |
| Titanium (Ti-6Al-4V) | 30–36 HRC | ★★★☆☆ Good | Finishing with reduced speeds |
| Aluminum (6061, 7075) | < 150 HB | ★★★★★ Excellent | High-speed finishing, mirror surfaces |
8. Application Map by Operation
| Operation Type | Suitability | Notes |
|---|---|---|
| 3D Contouring / Profiling | ★★★★★ Ideal | Ball-nose geometry ensures smooth surface transitions |
| Cavity Machining | ★★★★★ Ideal | Excellent corner radius control and surface finish |
| Die & Mold Finishing | ★★★★★ Ideal | Mirror-finish capability on hardened steels |
| Engraving / Texturing | ★★★★☆ Very Good | Fine detail reproduction with minimal burr |
| Ramping / Plunging | ★★★★☆ Very Good | Center-cutting design allows direct entry |
| Slotting | ★★★☆☆ Good | Use reduced width of cut for best results |
| Roughing | ★★☆☆☆ Fair | Not recommended—use roughing endmills for material removal |
9. Recommended Cutting Conditions
| Parameter | Carbon Steel | Alloy Steel | Stainless Steel | Aluminum |
|---|---|---|---|---|
| Cutting Speed (Vc) | 150–200 m/min | 120–160 m/min | 80–120 m/min | 200–300 m/min |
| Feed per Tooth (fz) | 0.03–0.08 mm | 0.02–0.06 mm | 0.02–0.05 mm | 0.05–0.12 mm |
| Depth of Cut (ap) | 0.2–0.5 × D1 | 0.1–0.3 × D1 | 0.1–0.25 × D1 | 0.3–0.6 × D1 |
| Width of Cut (ae) | 0.05–0.15 × D1 | 0.03–0.10 × D1 | 0.03–0.08 × D1 | 0.10–0.20 × D1 |
| Coolant | Flood / MQL | Flood / High-pressure | Flood (essential) | Air blast / MQL |
Note: Values are starting recommendations. Optimize based on machine rigidity, workpiece fixturing, and desired surface finish (Ra 0.4–1.6 μm achievable).
10. Operating Guidelines
- Runout Check: Ensure tool runout is < 0.01 mm at the tool tip. Excessive runout accelerates wear and degrades surface finish.
- Tool Overhang: Minimize overhang to 4×D or less. Use shrink-fit or hydraulic chucks for best rigidity.
- Preliminary Pass: Perform a light test cut at 50% recommended parameters to verify tool behavior and surface finish.
- Coolant Flow: Maintain coolant concentration at 8–10% for water-based coolants. Ensure adequate flow to the cutting zone.
- Chip Evacuation: Use compressed air or through-spindle coolant to prevent chip recutting, especially in cavity operations.
- Tool Life Monitoring: Inspect cutting edges after 30–60 minutes of operation. Replace when flank wear exceeds 0.1 mm or coating shows substrate exposure.
- Storage: Store in original packaging at < 30°C and < 60% relative humidity to prevent corrosion.
11. Toolholder Compatibility
| Holder Type | Shank Diameter | Clamping Method | Runout Capability |
|---|---|---|---|
| Shrink-Fit Holder | 0.125" | Thermal interference fit | < 0.003 mm (Best) |
| Hydraulic Expansion Chuck | 0.125" | Hydraulic pressure | < 0.005 mm (Excellent) |
| Precision Collet (ER16/ER20) | 0.125" | Spring collet | < 0.010 mm (Very Good) |
| Weldon Side-Lock Holder | 0.125" | Set screw clamping | < 0.015 mm (Good) |
For optimal performance with this 0.056" endmill, a shrink-fit or hydraulic chuck is strongly recommended to minimize runout and maximize tool life.
12. Packaging & Ordering Information
| Item | Details |
|---|---|
| Manufacturer Part Number | SGM00933 |
| Product Name | Kyocera 0.056 BN SGM00933 4FL Ball-Nose Endmill |
| Unit Price | $24.30 USD |
| Minimum Order Quantity | 1 piece |
| Packaging | Individual plastic tube with foam insert; 10 pieces per inner box |
| Labeling | Laser-marked with part number, diameter, and batch code |
| Warranty | Standard manufacturer warranty against material and manufacturing defects |
| Certification | ISO 9001:2015 manufacturing; RoHS compliant |
13. Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Family | SGM Series – Solid Carbide Endmills |
| Product Line | Micro-to-small diameter ball-nose endmills |
| Tool Category | Rotary cutting tool / Milling cutter |
| Geometry Class | Ball-nose (spherical tip) / 4-flute |
| Coating Technology | Nano-layered PVD (TiAlN-based) |
| Industry Standards | DIN 6527, ISO 1641 |
| Primary Industries | Aerospace, Automotive, Die & Mold, Medical, General Engineering |
| EAN / UPC | Not assigned (industrial B2B product) |
| Last Catalog Update | 2026-Q2 |
Need technical support? Our CNC tooling specialists are available to assist with application engineering, parameter optimization, and custom tooling solutions. Contact us for bulk pricing and institutional orders.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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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):
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Manufacturing and dispatch typically require 4–5 weeks. Once production begins, cancellations cannot be accommodated. -
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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。
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.
