Graphite Corner Radius End Mill【2/4 Flutes Long Neck Φ 0.5-3】

4-Flute Long-Neck Corner Radius Diamond-Coated End Mill – Engineered for Precision Machining of Graphite and Ceramics

Specifically designed for high-hardness, brittle non-metallic materials such as graphite and electro-ceramics, this 4-flute end mill features a long-neck geometry and corner radius cutting edge, offering excellent accessibility and edge strength. Constructed with an ultrafine-grain solid carbide substrate and coated with a high-adhesion diamond coating, it delivers outstanding wear resistance, thermal stability, and dimensional accuracy. Proven through field testing, the tool achieves a stable cutting life exceeding 18 hours under dry or MQL conditions on CNC machining centers.

High-Adhesion Diamond Coating for Extended Tool Life
Applied with a premium diamond coating (non-CVD/PCD), the tool offers exceptional surface hardness and chemical inertness. It resists graphite dust abrasion and cutting-edge microchipping during dry machining, significantly enhancing tool longevity and cutting stability.

Long-Neck Design for Deep Cavity & Intricate Feature Access
The extended neck geometry minimizes tool interference and enables efficient reach into deep cavities, narrow internal corners, and complex ceramic structures—ideal for mold cavities, microelectrodes, and precision structural components.

Corner Radius Geometry Enhances Edge Strength and Finish Quality
Rounded cutting edges reduce stress concentrations compared to sharp corners, improving edge durability and minimizing the risk of chipping. Especially effective in cavity finishing and contour milling of brittle materials like ceramics and graphite.

4-Flute Construction Increases Rigidity and Throughput
The 4-flute configuration enhances tool stiffness and vibration resistance, allowing for high-speed side milling, face milling, and finishing operations with improved surface quality and machining efficiency.

Ultrafine-Grain Carbide Core Offers Superior Crack Resistance
Made from high-performance ultrafine tungsten carbide, the tool provides excellent thermal stability and fracture resistance—built to endure the abrasive nature of graphite and ceramic materials in continuous operation.

Precision Five-Axis CNC Grinding – Tolerance ±0.01mm
Each tool is ground with high-precision 5-axis CNC equipment to ensure strict dimensional accuracy and edge consistency, meeting the high geometric tolerances required in applications like graphite electrodes, ceramic molds, and micro-structured parts.