GP500 Grinder

This counter-rotational grinder is portable, compact, and powerful. Designed to take any of the puck or wedge shaped tooling National offers, the GP500 will prep concrete and polish to a high shine 3000 grit finish.

Easy disassembly of this modular grinder allow for easy transportation.  Installing the carrying poles make it a 2-3 person lift. The onboard tank holds 8 gallons of water, bringing you the flexibility of dry or wet grinding. A grinder designed for dry and wet grinding is one of the most versatile tools you can have for concrete prep.

Wet Grinding Tips 

Wet grinding is a great choice for job environments that require completely dust-free removal. Remove as much slurry and dust as possible from the grinding head after a wet grind. A hand-held water jet works well for this cleaning.