This is equipment which is sometimes attached to a tractor. It is mounted on the wheels and carries two to four teeth, usually number being three. The ripper is used to break up the ground and to pull up the roots. This loosened material can then be removed by the scraper with the aid of ripper.
Ripper
The scraper can be used for stiff clay, soft rock and such other materials as can be ploughed. The rippers are drawn by a tractor and they serve as auxiliary instruments or appliances for dozers and scrapers. When rappers are used those is a considerable increase in the output of work and also reduce the strain and wear on tractors.