Operates at 1500 RPM or 2500 RPM for fast burnishingDelivers a high gloss, "Wet Look" shineExceptionally quiet operationVac-Trac™ internal vacuum system to recover powder and dust resulting in burnishing old finishFlexible, balanced built-in pad driver, adjuststo uneven floors for consistent burnishingHandle adjusts to operator's height for comfortHigh torque, permanent magnet-type 66 frame, 1.5 HP motor, for trouble free operation with no stallingMechanical safety lockout110-120V20" cleaning path3-year limited warranty5-year machine base warranty for model NI459 only