Having the right pair of hair clippers at your disposal can be the difference between a job well done or a job that’s, well, better left undone. Simply put, the right clippers are essential to proper men’s grooming Hair clipper is used to prepare the hair or beard for final cut and for a smoother finish. A trimmer used for shorter or finer hairs. It has thinner blades that make it easy to work on finer details of the hair or beard.