The Composition Of A Pencil Sharpener

- Dec 18, 2017-

Ordinary pencil knives are generally composed of three parts: blades, scabbard and scrap box.

The blade is fixed on the scabbard by screws, and the scabbard is made of cuboid plastic with holes, which is used to support the blade.

Scabbard is fixed in the scrap box, the scrap box can be round, square, various forms, also need to be the same as the scabbard hole to be a pencil.

The scrap box is designed to be detachable, which facilitates the removal of waste.