The PG 680 concrete floor grinder is an excellent choice for both industrial and commercial applications. With a grinding width of 27 in. it easily fits through a standard door making it accessible to most job sites without sacrificing power. The planetary drive system and Dual Drive Technology™ gives PG 680 an outstanding removal rate. Excellent choice for concrete floor preparation and repair as well as all polishing and grinding applications – both wet and dry. Perfect for HiPERFLOOR® concrete floor polishing system.