The CPS G320D Pro is an extremely effective, heavy-duty grinder. The 31HP propane engine is ideal to withstand the workout of heavy coatings removal and surface preparation, grinding and polishing concrete, terrazzo, marble, and granite. The three-head technology contours the floor. The improved design of this grinder allows for easier break down. Not to mention, this model features added weight and down pressure and an improved slip clutch for even more durability.