When buying dog grooming clippers, you should have certain expectations of the clippers you decide to purchase. The grooming clippers need to last a long time and endure a fair amount of wear and tear over the years, so quality is extremely important. Clippers are a great investment if you know how to maintain them properly. After each use you should oil the blades to keep them clean and prolong their life-span. If the dog grooming clippers start to overheat, turn them off to let them cool and clean out hair trapped in the air vents. Spray coolant on the blade to prevent any burn injuries. Dismantle the clippers and oil the internal parts to keep the clippers in a good condition and running properly.