The best dog grooming clippers vary depending on the specific use, but experienced groomers typically prefer clippers by Andis or Oster. Both companies make several models with different prices and options, so choosing the best one is often a matter of personal preference.
Professional dog groomers typically need more powerful and ergonomic clippers with variable speeds. They may also prefer models that have snap-on blades for easy changing and that do not need internal maintenance like oiling, which can help save time.
An amateur dog groomer who is just clipping one or two dogs may prefer to buy a more basic model with only one speed and more maintenance needs to save money. A shopper should carefully consider how he plans to use the clipper and buy a model that meets those needs.