K40 Carbide Rotary Burr Drill Bit SF Shape HRC 60-62 Shank 4-12mm Diameter 25,000-40,000 RPM
Price:
4.5usd
MOQ:
10pcs
Delivery Time:
5-25days
Brand:
Zweimentool
Product Description
High-Performance SF-Shaped Carbide Rotary Burrs
Precision engineered for superior aluminium machining, our SF-shaped carbide rotary burrs combine aggressive cutting with finishing capability, making them ideal for complex contouring and edge blending in aluminium workpieces.
Key Product Advantages
- Dual-Purpose Design - Flame shape enables both roughing and finishing in one tool
- Anti-Clog Geometry - Proprietary flute pattern prevents aluminium adhesion
- Premium Materials - K40 micro-grain carbide with SCM435 alloy steel shank
- Swiss Precision - Ground to tolerances of ±0.005mm for perfect balance
- Versatile Application - Perfect for aerospace components, automotive molds, and precision engineering
Technical Specifications
Cutting Head Composition
- Carbide Grade: K40 (93.5% WC, 6.5% Co)
- Hardness: HRA 93±0.3
- Grain Size: 0.4-0.6μm micro-grain structure
- Coating Options: TiCN (Standard), ZrN (Premium)
Shank Specifications
- Material: SCM435 chromium-molybdenum alloy steel
- Heat Treatment: Vacuum hardened to HRC 60-62
- Runout: <0.003mm for vibration-free operation
Complete Product Line (SF Series)
| Model | Cutting Dia. (mm) | Working Length (mm) | Shank Size | Max RPM | Best For |
|---|---|---|---|---|---|
| SF-AL301 | 4 | 8 | 3mm (1/8") | 40,000 | Precision detailing |
| SF-AL302 | 6 | 12 | 6mm (1/4") | 35,000 | General contouring |
| SF-AL303 | 8 | 15 | 6mm (1/4") | 30,000 | Heavy material removal |
| SF-AL304 | 10 | 18 | 6mm (1/4") | 28,000 | High-finish blending |
| SF-AL305 | 12 | 22 | 6mm (1/4") | 25,000 | Industrial applications |
Custom configurations available with MOQ 50pcs - contact for engineering support
Optimal Cutting Parameters
- Speed: 18,000-30,000 RPM (depends on diameter)
- Feed Rate: 0.05-0.15mm/tooth
- Cooling: Recommended for prolonged operations
Why Global Manufacturers Choose Us
- Specialized in Aluminium Cutting Tools since 2008
- German-Designed Cutting Geometry for maximum efficiency
- Full ISO 9001:2015 Certified Production
- 48-Hour Sample Service for qualified buyers
- Dedicated Engineering Support for custom solutions
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xinhua Industrial Co., LTD
Location
SANTAI TEMPLE NO.67 ZILIUJING DISTRICT ZIGONG CITY SICHUAN PROVINCE CHINA PR
Contact Person
HARRY