The three main types of dog grooming shears are straight shears, curved shears, and thinning shears. Straight shears, as the name would suggest, have straight blades that are great for basic grooming, creating straight lines, and finalizing haircuts.  Curved shears have curved blades that are ideal for those difficult areas of the coat, such as the feet. Thinning shears typically have a cutting edge on one blade and teeth on the other, although some have teeth on both blades. They’re used to remove lots of hair in even sections and create a natural look.