Which type of nail file is generally recommended for filing acrylic nails?

A coarse-grit file is generally recommended for filing acrylic nails because it effectively shapes and reduces the thickness of the acrylic material. Acrylic nails are often quite solid and thick, requiring a file that can quickly and efficiently remove bulk without compromising the integrity of the nail enhancement. Coarse-grit files usually have a grit rating that ranges from about 80 to 120, which allows nail technicians to progress through the shaping process more quickly compared to finer files that might be better suited for finishing touches or natural nail care.

Using a coarse-grit file helps ensure that the acrylic can be shaped into desired lengths and styles with ease, making it an essential tool in the manicure process for acrylic nails. In contrast, finer files are better for smoothing edges or finishing touches after the shaping process is complete, while metal files can damage the nail if not used carefully or can be too harsh for acrylics. Buffers are specifically designed to smooth the surface rather than alter the shape and would not be effective in the initial filing down process.