In high-precision material processing, tool performance directly affects both machining efficiency and product quality. The SAMHO diamond-coated 2-flute long neck flat end mill bit (D0.2–3 mm) is engineered for the toughest graphite and ceramic applications. It combines exceptional wear resistance with precise cutting performance. Its air-shaded design reduces tool friction and prevents chip clogging, allowing CNC operators to perform stable and efficient precision machining, even at high speeds.
Advanced Technical Features
High-Adhesion Diamond Coating for Extended Tool Life
Our proprietary diamond coating provides exceptional hardness and chemical inertness:
- Wear Resistance: The cutting edge stays sharp even during prolonged, continuous dry cutting.
- Micro-Chipping Prevention: The coating bonds securely to the carbide substrate under high-speed friction, reducing the risk of edge chipping.
Long-Neck Geometry for High-Precision Machining
The precision long-neck design allows easy access to deep cavities and complex contours, ensuring stable 3D profile machining:
- Graphite Machining: Delivers a cleanroom-level smooth surface, ideal for intricate electrode workpieces.
- Ceramic Machining: Achieves high-precision finishes with no tool marks.
Efficient Dual-Flute “Cool-Cutting” Design
The sharp dual-flute geometry minimizes cutting heat and optimizes chip evacuation:
- Maximized Chip Evacuation: Quickly removes abrasive dust and debris for stable machining.
- Reduced Cutting Load: Limits heat buildup, preventing cracks in brittle materials.
Ultra-Fine Grain Carbide Substrate with High-Precision Grinding
- Precise Dimensional Tolerance: Controlled within ±0.01 mm for consistent batch production.
- Superior Fracture Resistance: Improves durability, especially for highly abrasive materials.
Typical Applications
Graphite Machining: Ideal for high-precision cutting of EDM electrodes, graphite molds, and structural components.
Ceramics Machining: Suitable for electrical ceramics, zirconia, and other brittle non-metallic materials, delivering smooth, high-gloss surface finishes.
Composite Machining: Efficiently mills glass fiber- and carbon fiber-reinforced plastics, reducing cutting heat and minimizing the risk of material cracking.
Why Source Wholesale from SAMHO?
Exceptional Lifespan: High-adhesion diamond coating provides superior wear resistance and prevents micro-chipping, ensuring reliable performance in high-speed dry cutting.
Stability and Precision: Made from ultra-fine-grain carbide and manufactured to strict tolerances, delivering consistent results in batch production.
Trusted Supplier: Supported by SAMHO’s 20+ years of CNC tool R&D and manufacturing expertise, offering a dependable and professional partnership.












