File:Grader_2.jpg · Wikimedia Commons · See Wikimedia Commons
grader
Also known as road grader
thumb|Caterpillar, Inc.|Caterpillar 140 grader thumb|Caterpillar, Inc.|Caterpillar CAT 12G grader
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thumb|Caterpillar, Inc.|Caterpillar 140 grader thumb|Caterpillar, Inc.|Caterpillar CAT 12G 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".