A brush is included with most clippers. If your clipper did not come with a brush or if you no longer have the brush, a toothbrush can be used to brush the hair out from between the teeth of the blade. Oster Kool Lube or Oster Blade Wash may also be used. Please note that even though these do contain oil, they are not sufficient for keeping your blade oiled. Blades should be oiled often during use.