In the field of hardened steel machining, cutting tools must meet extremely high standards for both precision and durability. They need to deliver excellent cutting accuracy while withstanding long-term wear from high-hardness steels and alloys.
SAMHO’s specially coated 4-flute long neck corner radius end mill is engineered to meet these demanding requirements. Its optimized cutting edge geometry and advanced wear-resistant coating improve both cutting efficiency and tool life. This end mill helps CNC operators efficiently and consistently process quenched steel and other high-hardness materials.
Advanced Technical Features
High-Adhesion Coating for Ultra-Long Tool Life
SAMHO’s proprietary high-wear coating technology gives this end mill exceptional hardness and chemical inertness:
- Wear Resistance: Maintains a sharp cutting edge during prolonged, continuous machining of hardened steels and high-hardness alloys.
- Prevents Micro-Chipping: Keeps the coating firmly bonded to the carbide substrate under high-speed friction and heavy cutting loads.
4-Flute, Long-Neck, Corner-Radius Geometry Optimized for Hardened Steel
The carefully engineered cutting-edge geometry delivers outstanding performance in complex contour and deep cavity machining:
- Efficient Cutting: The optimized 4-flute structure with corner-radius design enables smooth cutting, reducing vibration and heat accumulation.
- Deep Cavity Adaptability: Long-neck design allows easy access to deep holes, narrow cavities, and complex mold profiles.
Efficient Chip Evacuation and “Cool Cutting” Performance
Sharp cutting edges and optimized flute geometry lower cutting heat and improve machining efficiency:
- Rapid Chip Evacuation: Quickly removes chips and debris from the cutting zone, preventing localized heat buildup.
- Reduced Cutting Load: Minimizes heat accumulation, preventing thermal cracking in hardened steels.
Ultra-Fine Grain Carbide Substrate and High-Precision Grinding
High-strength, ultra-fine grain carbide combined with precision grinding ensures exceptional machining accuracy and repeatability:
- Dimensional Tolerance Control: Strictly held within ±0.01 mm, guaranteeing consistent batch production.
- Fracture Resistance: Significantly improves tool durability, making it ideal for machining hardened steels and highly abrasive materials.
Target Applications & Industries
This series of 4-flute long-neck corner-radius end mills is ideal for:
- Precision contouring and machining of hardened steels and other high-hardness alloys
- Machining mold cavities and deep cavities
- Processing wear-resistant and high-hardness materials
- Creating high-precision contours, complex structures, and internal corners
Why Choose SAMHO as Your Wholesale Partner?
OEM/ODM Support: Customized tool specifications and designs meet diverse project requirements with full flexibility.
High-Precision Shank Diameter: Tolerance is strictly controlled within 0–0.003 mm, ensuring stable tool installation and improved machining accuracy.
High Wear-Resistant Coating: Patented coating technology delivers exceptional tool life and durability, ideal for hardened steel and other high-hardness materials.
Excellent Cutting Performance: The 4-flute structure, long neck, and corner-radius design deliver efficient cutting in deep cavities, complex contours, and high-precision internal angles.
Trusted International Supplier: Mature production processes and strict quality control ensure consistent performance and reliable batch supply.
