D12 Endmill – HRC70 – 12*36*12D*75L*4T

HUHAO HRC70 Solid Tungsten Carbide 4-Flute End Mills – AlTiSiN Coated Milling Cutters for Hardened Steel and High-Precision CNC Applications

Achieve exceptional machining results with HUHAO HRC70 4-Flute Solid Carbide End Mills, specially designed for high-speed cutting of hardened materials. Featuring a wear-resistant AlTiSiN coating, these end mills are ideal for advanced CNC operations on hardened steel (up to 70 HRC), die steel, and other tough alloys.

✅ Key Features:

• Material: Ultra-fine grain solid tungsten carbide

• Hardness: HRC70 – optimized for machining hardened steel and high-strength alloys

• Flute Count: 4 flutes – ideal balance of rigidity and chip evacuation

• Coating: AlTiSiN (Aluminum Titanium Silicon Nitride) – excellent oxidation resistance and thermal stability up to 1000°C

• Cutting Edge: Flat end with sharp geometry for clean, precise cuts

• Tolerance: High concentricity for minimal runout and maximum accuracy

• Diameter Range: 1mm to 20mm available

• Shank Type: Straight shank for reliable clamping and reduced vibration

⚙️ Best Suited For:

• Hardened steel (up to 70 HRC)

• Tool steel, die steel, alloy steel

• Cast iron, stainless steel, titanium alloys

• High-speed CNC milling centers

🔍 Applications:

• Mold & die manufacturing

• Precision part machining

• High-performance cutting in aerospace and automotive sectors

• Dry or semi-dry machining environments

💡 Why Choose HUHAO HRC70 End Mills with AlTiSiN Coating?

• Outstanding tool life in extreme conditions

• Resistant to heat, wear, and oxidation

• Maintains sharp cutting edges at high speeds

• Delivers superior surface finish on hard materials

• Reduces downtime due to fewer tool changes