Tractor in confined areas. The most common variation of the classic farm tractor is the hoe, also called a hoe-loader. As the name implies, it has a loader assembly on the front and a backhoe on the back. Backhoes attach to a three-point hitch on farm or industrial tractors. Industrial tractors are often heavier in construction, particularly with regards to the use of steel grill for protection from rocks and the use of construction tires. When the backhoe is permanently attached, the machine usually has a seat that can swivel to the rear to face the hoe controls. Removable backhoe attachments
Backhoe stockpile, for picking up or filling material next to walls, to increase the reach of the machine, or working around obstacles such as pipes. Sometimes a backhoe arm is used as a crane, by slinging the lifted object from the support linkages behind the scoop (advisably not from the teeth). The backhoe's scoop may have a metal bar called a "thumb" hinged to the scoop. It grips against the scoop like a human thumb to pick up objects. Some types can lie back against the backhoe arm when not needed. Early development of hydraulic systems for what would become the