The condition of the points is very important: often the subsoiler fails to give good results due to the condition of its points. Points can be fitted with horizontal wings, about  wide, which considerably increases the width of soil below ploughing depth loosened by the subsoiler. These plows are sometimes equipped with a torpedo-shaped attachment for making subsurface drainage channels.
The quality of the points is vital: often, the subsoiler fails to achieve good results due to the condition of its points. Points can be equipped with horizontal wings, roughly  wide, which significantly increase the soil loosened by the subsoiler below ploughing depth. These plows sometimes include a torpedo-shaped attachment for creating subsurface drainage channels.