Ingersoll Rand IR318AHeavy Duty Air Vertical Polisher/Buffer7 inch Pad. The variable speed control lever throttle helps eliminate paint burning. Comes complete with a 7" backing pad. Long tool life from the planetary gear reduction feature.Ingersoll-Rand IR318A Features : Built-in power regulator This compact, lightweight vertical polisher/buffer gives you the results you want, even on the tough jobs. Plenty of power from the 1 hp motor Long-life, ball bearing constuction Handle exhaust directs air away from work area Ingersoll-Rand IR318A Specifications : Avg. Air Consumption: 6 cfm Sound (perssure/power): 96.5/109.5 dBA Spindle - 5/8-11 Air inlet: 1/4" Minimum Hose Size: 3/8" (10 mm)