EDiamondTools 7 Amp Corded 5 in. Wet Variable Speed Polisher Kit is ideal for handheld polishing of granite, marble, concrete and other stone countertop surfaces. Featuring a water valve adapter that easily attaches to a garden hose, this allows constant flow of water to reduce the amount harmful airborne dust and allows smooth polishing. Also equipped with a 10 in. power cord, a lock on switch, 2 ergonomic comfort handlebars (C-handle, side handle) and a splash guard, any buffing and polishing projects can be completed with ease and efficiency. The high-performance precision built 800-Watt/7 Amp electric motor can deliver the right amount of power for any task at hand, ranging from 700 RPM up to 3000 RPM. The maximum disc diameter is 5 in. and has a spindle size of 5/8-11 in. Kit includes 7 high-quality wet polishing pads (4 in.) that feature a unique pattern design for improved airflow, longevity and ensures a professional finish for DIYers or commercial users. Grit sizes range from #50, #100, #200, #400, #800, #1500 and #3000 along with a rubber hook and loop backer pad. These 4 in. polishing pads securely attach to the 4 in. rubber backing pad with a hook and loop velcro front side making it extremely quick to swap as needed.