The electric nail drill is used for filing and shaping natural and acrylic nails. It works much faster than a standard nail file, which is why it is an especially important tool for shaping and maintaining acrylics. It is also great for repairing cracks in acrylics, removing lifted acrylics, trimming nails before applying gel or acrylic nails, buffing natural nails, repairing cuticles, and smoothing calluses or hardened skin on hands and feet.