Koblenz Floor Buffer Model P-620 How does this machine compare with other brands? Most other brands of polishers have plastic gears which can strip easily however Koblenz polishers have bronze gears for extra long life. Other polishers are built with a lot of plastic parts however Koblenz polishers use more metal. Designed and built to last This machine scrubs polishes buffs and waxes all kinds of floors with professional results and littl 4.2 amp motor. The most powerful available. Full width bronze gears for extra long life. There is a one year warranty on all defective parts P-620 KO-P620
