A coarse nail file is a type of nail file that has a rough surface and is used for heavy product removal. Here are some details about coarse nail files:
Positive:
- They are effective at removing thick layers of product from the nails.
- They can be used to shorten the length of nails and shape the side walls and free edge.
- They are available in different grits, such as 80, 100, and 180.
Negative:
- Coarse nail files should not be used on the surface of natural nails with a grit coarser than 240, as this can damage the nails.
- Overfiling the nails with a coarse nail file can cause thinning and weakening of the nails.
Ingredients or materials:
- Coarse nail files are made with different materials, such as adhesive tape and emery board materials.
- Some nail files are washable and reusable, while others are disposable.
Overall, it is important to use coarse nail files properly and avoid overfiling the nails to prevent damage. It is also important to choose a nail file with an appropriate grit for the task at hand.