What equipment is needed for drilling, cutting and marking with sandpaper and gauze?

【摘要】

Sandpaper itself is a kind of grinding tool. It is often used to grind metal or non-metal materials. It is suitable for grinding workpieces with complex shapes, making the surface of objects smooth or polishing certain waste materials on the surface of objects. It is a small tool used in daily life. However, in actual application, it is not suitable for grinding workpieces with complex shapes, making the surface of objects smooth or polishing certain waste materials on the surface of objects.