The Motor Grader, also commonly referred to as a road grader, is a construction machine with a long blade used to create a flat surface during the grading process. Superior detail in these do it yourself (DIY) models begin as a 4 inch steel sheet and when completed create a fabulous 3D miniature model. Easy to follow printed instructions included in every package. Build your entire collection today! Difficulty: Moderate - 3 Sheets.