Power-saving scissors

A power-saving scissors comprising:

• a first handle having a first knife set formed on the second handle;
• the first handle being formed with a receiving space;
• an inner wall of the receiving space being formed with teeth;
• a second handle pivotally installed to the first handle by a planet gear set;
• the second handle having a second knife set;
• a gear being protruded from the second handle at a position corresponding to the receiving space;
• the center gear being located within the receiving space of the first handle;
• the planet gear set including the center gear, at least one peripheral gear and a cover;
• one end of the center gear being installed to the second handle and another end thereof being protruded with a post;
• the three peripheral gears being engaged to the center gear and also engaged to the teeth of the receiving space;
• the cover covering upon an outer side of the receiving space so as to seal the planet gear set within the receiving space;
• wherein at a side of the first knife set near the second knife set, the first knife set has an upper knife above the receiving space, a middle round concave knife below the receiving space and a lower knife below the second concave knife;
• at a side of the second knife set near the second knife set, the second knife set has an upper knife above the center gear, a middle round concave knife below the receiving space and a lower knife below the second concave knife.