This rear exhaust, pneumatic wet polishing tool is designed for continuous production applications and improved safety. Lightweight and compact, this tool provides the operator with increased comfort and reduced fatigue. Cast from aircraft aluminum, the BD-2321WR is one of the most durable tools of its kind on the market for polishing stone. The water-tight sealed bearings provide long life and smooth rotational speeds in all operating conditions. The water and air controls are simple to use and conveniently located. Exhaust is vented at the rear of the tool and carried away from the operators’ hands by the hose protector. The BD-2321WR comes with 25' water hose, 5' air hose, 3' air/water hose protector, D-handle, wrenches.Plus two 4"diamond cupwheels (Turbo Coarse & Continuous Rim Fine), 4" backer pad, 4" polishing pad set 60,150,300,500,1000,2000,3000 & 8500 grit & 4" felt pad.