Nail files are an essential tool for nail care, and they come in different grit grades that determine their coarseness. The grit number refers to how coarse the grit is on the nail file surface, and the higher the number, the softer the file grit, while the lower the number, the coarser the file grit. Here is a list of the most common grit grades and their uses:
- 80 grit: Very coarse, best used to remove polish, gel, or acrylics. However, it should not be used on the natural nail.
- 100 grit: Coarse, used to shorten the length of nails with or without acrylic, or to shape side walls and free edge.
- 150 grit: Medium coarse, used to shape the nail bed or blend tips onto the natural nail.
- 180 grit: Medium, used to shape the entire nail or nail enhancements such as acrylics, prep the nail before applying products, or shorten or shape free edge of natural nail.
- 220-280 grit: Medium fine, used to prep nails before UV gel polish, soft enough for natural nail, and creates a smooth shine.
- 400-900 grit: Extra fine, used for finishing, removes ridges and stains, and preps for buffing/shining.
Nail files can be made of different materials, such as EVC+ Emery board materials. It is essential to choose a high-quality file and clean and sanitize it regularly to prevent the spread of bacteria and fungus.