Production Rate: 7" working width will grind approximately 400-500 lineal ft. per hour at 1/16" with EDCO Diamond Cup Wheel. INCLUDES: 1-7" Diamond Cup Wheel & Standard Vacuum Port. REQUIRES 1-8" Diamond cup Wheel. IDEAL FOR: Grinding tightly against any vertical surface. - Grind around columns or under tanks and other tight areas. - Removing coatings, build-ups, markings, overlays or paints