Laser nail files are made from stainless steel with a laser-etched abrasive pattern. They are reusable, sterilisable (autoclave and dry heat), and last for years. The laser pattern seals the nail edge, preventing splitting and delamination. Mineral nail files use an abrasive mineral coating (such as silicon carbide) on a flexible plastic base with a foam cushion layer. They are designed for single-use or short-term use and offer a gentler filing action. Laser files are the more economical long-term choice for professionals.

Grit indicates coarseness: 80 grit is extra coarse for artificial nails and heavy shaping, 100 grit is coarse for artificial nail work, 150 grit is medium for general shaping, 180 grit is universal for both natural and artificial nails, 240 grit is fine for smoothing and pre-coating prep, and 400/3000 grit is for polishing. For natural nails, always use 180 grit or higher to avoid damage. For artificial nails or acrylics, 80-150 grit files work best.

Disposable mineral nail files (sold in packs of 5 or 25) are designed for single-client use — dispose of them after each service for maximum hygiene. Laser nail files and reusable metal files should be cleaned with a brush after each client, disinfected with a salon-grade solution, and sterilised via autoclave or dry heat oven. Store all files in a clean, dry place away from direct sunlight to preserve the abrasive surface.