Double-edge composite edge milling cutter is a commonly used milling cutter, and its characteristics mainly include the following aspects:

1. Efficient processing: The double-edge composite edge milling cutter has two blades, which can be used for cutting and milling at the same time to improve processing efficiency.
2. High processing accuracy: the cutting edge of the double-edge composite edge milling cutter is finely ground and polished to ensure processing accuracy and surface roughness requirements.
3. Wide range of application: the double-edge composite edge milling cutter can be applied to the processing of a variety of materials, such as steel, cast iron, aluminum alloy, etc., and is suitable for the processing of different shapes such as plane, slope, groove, etc.
4. Good stability: double-edge composite edge milling cutter is made of high-strength material, with good vibration resistance and cutting stability, to ensure the stability and reliability of the processing process.
5. Long life: the cutting edge of the double-edge composite edge milling cutter is specially treated and has a long service life, which can reduce production costs and improve production efficiency.

In short, the double-edge compound edge milling cutter has the characteristics of high efficiency, high precision, wide application range, good stability and long life, and is one of the commonly used tools in machining.