The DG7 professional-duty, high-speed surface grinder for concrete grinding and polishing allows the operator to work in an upright position. Powered by a 2,300-watt, high-speed grinder, the DG7 can use a variety of 7-in. diamond segment discs. Dual gas shocks are incorporated to dampen the grinder's recoil. The DG7 can also be used with General Equipment's Pro Polish attachments. Other features include an ergonomic handle, full-swivel non-marking caster wheels, and a 2 1/4-in.-diameter vacuum connection port.