Specially designed for semi precision and precision machining of aluminum alloy curved surfaces, cavities, and circular arc contours. Adopting a large capacity chip groove design, the chip discharge is smooth, effectively preventing the accumulation of chip lumps on the blade. Sharp and smooth cutting edge, low cutting resistance, high machining smoothness, and good forming effect. Paired with anti stick aluminum special treatment, high-speed cutting is less likely to strain the workpiece and produce less knife marks. The tool has sufficient rigidity and strong shock resistance, with R-angle accuracy standard, suitable for various aluminum materials such as 6061, 7075, and cast aluminum, and is suitable for CNC efficient processing of precision aluminum parts, mold cavities, relief shapes, etc