
Nail file grit refers to how coarse and abrasive a nail file is. Nail files are labelled by number, typically between 60 and 1000, and the lower the number, the more abrasive the file. A 100-grit nail file is considered coarse and is best used to remove polish, gel or acrylics, but not on natural nails. A 240-grit file is a softer nail file that is intended for natural nails, and can be used to shorten and shape them.
| Characteristics | Values |
|---|---|
| Coarse grit nail file | 100 grit |
| Used for | Removing polish, gel or acrylics |
| Used on | Not to be used on natural nails |
| Less coarse grit nail file | 180-240 grit |
| Used for | Shaping the natural nail edge |
| Used on | Natural nails |
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What You'll Learn

Nail file grit refers to how coarse and abrasive a nail file is
You'll see nail files labelled by number, typically between 60 and 1000. If you see two numbers, you're likely looking at a double-sided file. The lower the number, the more abrasive the file. You may also see them labelled as simply "coarse", "medium", or "fine". An 80-grit nail file (more abrasive) can tear apart and damage natural nails. A fine, 1000-grit file would take serious effort when tasked with shaping acrylics.
Buffers can be coarser than nail files, as they have a cushioned layer which offers more protection. A 180-grit nail file should be fine for shaping the natural nail edge, and if nails are very soft or damaged, a 240-grit file may be better. A 240-grit file is also used to shorten the natural nail and file it into shape. Filing with a coarse file on the free edge of the nail can destroy the bond between the keratin cells and make the nail porous, so that it separates in the layers.
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The lower the number, the more abrasive the file
Nail file grit refers to how coarse and abrasive a nail file is. The lower the number, the more abrasive the file. For example, an 80-grit nail file is more abrasive and can tear apart and damage natural nails. A 1000-grit file, on the other hand, is finer and would be better suited for shaping acrylics.
The grit number typically ranges from 60 to 1000. If you see two numbers, it's likely a double-sided file, with both sides having the same level of coarseness. For instance, an 80/80 file means both sides have an 80-grit surface.
When it comes to natural nails, it's recommended to use a file with a grit of 240 or higher. A 240-grit file is considered a softer file and is ideal for shaping the natural nail without causing damage. Using a coarser file on the free edge of the nail can disrupt the bond between keratin cells, making the nail porous and prone to separation.
Buffers can be slightly coarser than files, as they have a cushioned layer that provides more protection for the nail. For removing polish, gel, or acrylics, a 100-grit file is suitable, but this type of file should not be used on natural nails.
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A 180 grit nail file is good for shaping natural nails
Nail file grit refers to the size of the abrasive grains on the file, similar to sandpaper. Lower grits are perfect for tough jobs like removing hard acrylic nails, while higher grits are ideal for refining and smoothing natural nails or finishing touches.
Buffers can be coarser than 240 grit, as they have a cushioned layer which offers more protection. If your nails are very soft or damaged, a 240 grit file may be better. However, a 240 grit file is softer and intended for natural nails. Filing with a coarse file on the free edge of the nail can destroy the bond between the keratin cells and make the nail porous, so that it separates in layers.
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A 240 grit file is good for shaping soft or damaged nails
Nail file grit refers to how coarse and abrasive a nail file is. The higher the number, the smoother the file, and the lower the number, the coarser the file. A 240 grit file is a softer nail file and is therefore intended for natural nails. It is good for shaping soft or damaged nails because it is less likely to tear apart and damage the nail. This is because it is less coarse than a 180 grit file, which is also suitable for shaping natural nails. A 240 grit file can be used to shorten the natural nail and file it into shape. It is also recommended to use a 240 grit file to carefully remove the shine from the top of the nail, but only in the direction of nail growth.
Buffers can be coarser than a 240 grit file because they have a cushioned layer which offers more protection. A 100 grit file is considered coarse and is not to be used on natural nails. Lower grits, such as 80, are perfect for tough jobs like removing hard acrylic nails. A fine, 1000-grit file would be used for finishing touches, such as removing ridges and stains and prepping for buffing or shining.
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A 1000-grit file is good for shaping acrylics
A 1000-grit file is a fine nail file, which is ideal for shaping acrylics. The higher the nail file grit number, the smoother the file, so a 1000-grit file is smoother than a coarse 100-grit file. A 100-grit file is used to reduce the length of nails and take down the surface.
A 1000-grit file is also good for removing acrylic nails, nail cuticles and dip powder nails, poly nail gel, and shaping fake nails. It can also be used to do manicures and pedicures.
A 1000-grit file is not suitable for natural nails, as it is too abrasive and can damage them. A 240-grit file is the softest file that can be used on natural nails. If the natural nails are very soft or damaged, a 240-grit file is recommended.
A 100/180-grit file is also suitable for shaping and debulking acrylic nails. The 100-grit side can reduce length and take down the surface, while the softer 180-grit side can be used for shaping the natural nail.
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Frequently asked questions
Coarse grit refers to how abrasive a nail file is. The lower the number, the coarser the file.
The grit number refers to the size of the abrasive grains on the file. The higher the number, the smoother the file.
A 180 grit nail file should be fine for shaping the natural nail edge. If your nails are very soft or damaged, a 240 grit file may be better.
Never use a nail file with a grit coarser than 240 on the surface of natural nails. Filing with a coarse file on the free edge of the nail can destroy the bond between the keratin cells and make the nail porous, so that it separates in layers.











































