This 7-inch walk-behind concrete grinder is sized for tight spaces and corner work, powered by a 1.7HP brushless pure copper motor that drives the disc up to 1720 RPM for consistent grinding and polishing. Replaceable diamond blades handle roughly 3230 to 5382 square feet before needing a swap, and they're compatible with standard diamond blades on the market for easy upkeep. The 7-inch disc makes it easier to work indoor and outdoor corners than a larger machine, while wet and dry grinding modes let you level uneven concrete, granite, marble, or stone depending on the job. The handle adjusts between 34 and 46 inches for operators of different heights, and a full accessory set, including earplugs for hearing protection, ships in the box. At 95 pounds and about 27.6 x 15.4 x 24.4 inches, it stays maneuverable for commercial and industrial floor work.