Dresco chain whip with chain to quickly and easily remove a freewheel from the rear wheel. Suitable for freewheels up to 9 speed. Place the chain whip on the freewheel. Make sure the whole chain is on one sprocket. Place the freewheel remover on the washer and loosen it. Sometimes the washer will not loosen even though a lot of force is applied. Spray some WD40 on it and let it soak in for an hour. Then try again to unscrew the washer.