Paper materials: 

   If the main materials to be die-cut are paper, cardstock, etc., ordinary steel tools are generally sufficient. For instance, for the die-cutting of ordinary packaging boxes, commonly used high-speed steel tools can meet the cutting requirements. This kind of knife has a moderate hardness, can effectively cut paper, and its price is relatively economical.

Plastic materials: 

   When die-cutting plastic films or thicker plastic sheets, sharper and harder cutting tools are required. For instance, hard alloy cutting tools have excellent wear resistance and sharpness, which can cope with the toughness and elasticity of plastic materials and ensure neat cutting edges. For materials like PET (polyethylene terephthalate) plastic film, hard alloy cutting tools can still maintain a good cutting effect after multiple die-cuts.

Composite materials: 

   When die-cutting composite materials composed of multiple materials, such as food packaging materials with aluminum foil or lithium battery electrode sheets (including metal foil and active substance coatings, etc.), the selection of cutting tools should comprehensively consider the characteristics of each layer of materials. Usually, tools with high hardness and good wear resistance, such as tungsten steel coated tools, are chosen. This type of cutting tool can penetrate material layers of different hardness, and the coating can enhance the tool's corrosion resistance and wear resistance, ensuring the cutting quality.

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