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2. Box blade - Wikipedia

   en.wikipedia.org/wiki/Box_blade

   Three point road graders can be viewed as a specific type of box blade, and are used to grade and maintain dirt and gravel roads. They usually have 2 parallel angled cutting edges, and long, low sidepieces. Manufacturers include DoMor Equipment Dura-Grader, Road Boss, and RoadRunner.

3. Cut (earthworks) - Wikipedia

   en.wikipedia.org/wiki/Cut_(earthworks)

   Road cutting. In civil engineering, a cut or cutting is where soil or rock from a relative rise is removed. Cuts are typically used in road, rail, and canal construction to reduce a route's length and grade. Cut and fill construction uses the spoils from cuts to fill in defiles to create straight routes at steady grades cost-effectively.

4. Grading (earthworks) - Wikipedia

   en.wikipedia.org/wiki/Grading_(earthworks)

   Section through railway track and foundation showing the sub-grade. Grading in civil engineering and landscape architectural construction is the work of ensuring a level base, or one with a specified slope, [1] for a construction work such as a foundation, the base course for a road or a railway, or landscape and garden improvements, or surface drainage.

5. Grader - Wikipedia

   en.wikipedia.org/wiki/Grader

   A grader, also commonly referred to as a road grader, motor grader, or simply blade, is a form of heavy equipment with a long blade used to create a flat surface during grading. Although the earliest models were towed behind horses, and later tractors , most modern graders are self-propelled and thus technically "motor graders".

6. King road drag - Wikipedia

   en.wikipedia.org/wiki/King_road_drag

   David Ward King, Inventor of the King Road Drag Contemporary Drawing of the King Road Drag Road Drag Patent. The King road drag (also known as the Missouri road drag and the split log road drag) was a simple form of a road grader implemented for grading dirt road. It revolutionized the maintenance of dirt roads in the early 1900s.

7. Wheel tractor-scraper - Wikipedia

   en.wikipedia.org/wiki/Wheel_tractor-scraper

   The pan has a tapered horizontal front cutting edge that cuts into the soil like a carpenter's plane or cheese slicer and fills the hopper which has a movable ejection system. The horsepower of the machine, depth of the cut, type of material, and slope of the cut area affect how quickly the pan is filled.