The semi-automatic grey cardboard drilling machine is designed to drill holes in grey cardboard and similar materials, widely used for making magnet boxes. 

Key features: 

1. Works with Different Materials: It can drill holes not only in grey cardboard but also in medium-density fiberboard (MDF), which makes it useful for different types of materials.

2. Adjustable Height: You can change the height for drilling, so it can be used for different needs and sizes.

3. Cleans Up Automatically: After drilling, the dust collector removes waste, making the whole process smoother and more efficient.

4.Easy to Use and Efficient: It's designed to be easy to use, ensuring a productive drilling process without unnecessary complications.