The blades on the best professional loppers usually get worn out after a couple uses or extensive usage that is. The best way to take care of a blade is to wipe the blade after every use to avoid the buildup of sap from the pruned shrubs. Another important thing to do is to lightly oil the blade for longer life and efficient cutting. After that, sharpening the blade regularly is also a must since sharp edges cut faster and extend the life of the lopper’s blade.