Sandpaper and glasspaper are names used for a type of coated abrasive that consists of sheets of paper or cloth with abrasive material glued to one face.

There are many varieties of sandpaper, with variations in the paper or backing, the material used for the grit, grit size, and the bond.

Sander, portable power tool used for smoothing, polishing, or cleaning a surface, as of wood, plastic, or metal. Sanders are also used to roughen surfaces in preparation for finishing. 

is principally used for the preliminary rough shaping of wood which is later finished with a plane, a file, a sanding stick, or sandpaper. The rasp removes wood very quickly without a risk of tearout. A rasp has a handle and a bar of steel with teeth. The teeth are coarse for quick removal of wood.