... 200mm Working Depth, 0-3mm Adjustable; Scarifier Machine Features:1) Used for scarifying, roughening, planning, leveling, smoothing, or creating grooves in ... surfaces and removes paint or coatings, and to clean and prepares concrete surfaces prior to coating, re-coating, and floor covering installation ... .Machine color can be choosed. 5Hp Diesel Motor Scarifier Machine used on concret road preparation