**1. Product Title **
Single Flute Carbide End Mill for Aluminum | 4-12mm Sizes | Uncoated | China Factory Direct
*"Designed for high-speed aluminum milling – no coating, no burrs, 100% chip-free!"*
#### **2. Key Features*
✅ **Material**：Ultra-fine grain carbide (HRA 92 hardness, 30% longer lifespan)
✅ **Design**：Single flute helical groove (50% faster chip evacuation – perfect for Al/Mg/Cu)
✅ **Uncoated Advantage**：Zero aluminum adhesion, less downtime, surface finish Ra≤0.8μm
✅ **Precision**：±0.01mm diameter tolerance – CNC-ready for tight tolerances
✅ **Specs**：4/6/8/10/12mm (1:1 shank diameter – no adapter needed)
#### **3. Application Scenarios **
🔧 **Materials**：Pure aluminum, aluminum alloys (6061/6063/7075), cast aluminum, extrusions
🏭 **Uses**：CNC milling, aluminum doors/windows, heat sinks, drone frames, DIY models
⚠️ **Avoid**：Steel, stainless steel, titanium (SOFT METALS ONLY!)
#### **4. Specifications **
| Diameter (mm) | Cutting Length (mm) | Total Length (mm) | Shank (mm) | Min RPM | Feed Rate (mm/min) |
|---------------|---------------------|-------------------|------------|---------|---------------------|
| 4 | 12 | 50 | 4 | 8,000 | 200-400 |
| 6 | 15 | 60 | 6 | 6,000 | 300-600 |
| 8 | 20 | 75 | 8 | 5,000 | 400-800 |
| 10 | 25 | 85 | 10 | 4,000 | 500-1,000 |
| 12 | 30 | 100 | 12 | 3,500 | 600-1,200 |
*(Note: RPM/feed rates are guidelines – adjust based on machine setup)*
#### **5. Shipping & Aftersales **
🚚 **Shipping**：
- China warehouse dispatch within 48h (Sundays excluded)
- Options：
▶ Economy：EUB (8-15 days, FREE to US/EU/CA)
▶ Express：DHL (3-5 days, $8 shipping – ideal for urgent orders)
🔧 **Warranty**：
- 7-day hassle-free return (unused & sealed)
- Free replacement for defects (video proof speeds up processing)
- 10% off for bulk orders (10+ pcs) – message for coupon
#### **6. FAQ (Address Buyer Concerns)**
**Q: Will uncoated tools wear out faster?**
A: Coatings cause aluminum sticking! Our carbide core lasts 500+ 6061 aluminum parts (wear <0.02mm tested).
**Q: Single vs double flute?**
A: Single flute = bigger chip space for deep slots/high speed (1.5x RPM of double flute) – smoother finish, fewer burrs!
**Q: Can I mix sizes?**
A: Yes! Mix 4-12mm freely. $5 off $50, FREE DHL on $100+!
On Mar 16, 2025 at 19:50:35 PDT, seller added the following information: