
A nail file is a tool used to gently grind down and shape the edges of nails. They are often used in manicures and pedicures after the nail has been trimmed using appropriate nail clippers. Nail files come in various materials, including emery boards, glass, crystal, and metal. The history of nail files dates back to the 1830s when a foot doctor named Sitts created an orange stick for women to file their nails. However, evidence of nail file-like tools exists even further back in history, with Marie Antoinette known for her fondness for using a pumice stone to shape her nails. Today, nail files are essential for nail care, helping to maintain uniform length and shape while also serving aesthetic purposes.
| Characteristics | Values |
|---|---|
| Tool | Nail file |
| Purpose | Gently grind down and shape the edges of nails |
| Use | Often used in manicures and pedicures after the nail has been trimmed using nail clippers |
| Types | Emery boards, ceramic, glass, crystal, plain metal files, metal files coated with corundum, iron, padded cushion files, mylar |
| Emery Board | Small, flat, long objects that have emery or emery paper glued to them, making them both abrasive and flexible |
| Emery Board Cost | Inexpensive and disposable |
| Emery Board Usage | 20-30 strokes to shorten long fingernails, 5-10 strokes for shaping |
| Other Names | Lime à ongles, orange stick |
| Grit | The higher the grit number, the smoother the file |
| Grit Coarse | 80-100 |
| Grit Medium | 180 |
| Grit Fine | 240-600 |
| Grit Ultra Fine | 600-2400 |
| Shapes | Straight, Oval, Banana, Halfmoon, Square, Coffin, Squoval, Stiletto, Round |
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What You'll Learn

Types of nail files
Nail files are tools used to gently grind down and shape the edges of nails. They are often used in manicures and pedicures after the nails have been trimmed. Nail files come in various materials and designs, and the right one for you will depend on your needs. Here are some of the most common types:
Emery Boards
Emery boards are made of cardboard with a sandpaper surface, making them both abrasive and flexible. They are typically inexpensive and designed for single use, making them a cost-effective and sanitary option. Emery boards are suitable for shaping and smoothing natural nails and come in different grits for different techniques.
Metal Files
Metal nail files are typically made of stainless steel and are durable and long-lasting. They are well-suited for shaping artificial nails but may be too harsh for natural nails. Metal files are more expensive than emery boards and need to be disinfected between uses.
Glass Files
Glass files are made from tempered glass and offer a gentle yet effective filing surface. They are suitable for both natural and artificial nails, providing precision and durability. Glass files are easy to clean and sanitise, making them hygienic, although they are more prone to breaking than other types of nail files.
Buffing Blocks
Buffing blocks are multi-sided tools that allow for gentle buffing and smoothing of the nail surface. They typically have different grits on each side, ranging from coarse to fine, and are excellent for achieving a polished, shiny finish.
Coarse, Medium, and Fine Grit Files
The grit number on a nail file refers to the abrasiveness or smoothness of the file, with lower numbers indicating a coarser file and higher numbers indicating a smoother file. Coarse files (100-150 grit) are more abrasive and suitable for filing, lengthening, or shaping acrylic or gel nails. Medium grit files (180-220 grit) are smooth enough for natural nails and can be used to lightly buff acrylic or gel enhancements. Fine grit files (240-400 grit) are soft enough to buff on top of natural nails without causing damage and can help remove natural oils to extend the life of a manicure.
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How to file nails
A nail file is a tool used to gently grind down and shape the edges of nails. They are often used in manicures and pedicures after the nail has been trimmed using appropriate nail clippers. Nail files may be emery boards, ceramic, glass, crystal, plain metal files, or metal files coated with corundum. Emery boards are usually less expensive than metal nail files and can be disposed of after use on a single person.
To file your nails, start by thoroughly washing and drying your hands with soap and warm water. This will get rid of any oil or debris that might interfere with the process. Next, decide on your nail shape. Some of the most popular and basic shapes are oval, square, and almond. Once you've decided on your shape, start by holding the file perpendicular to the edge of your nail. Position your hand so that your fingers point toward you, rather than away, to help you see your work better. File your nails in single strokes along the grain of your nail. Avoid using a sawing motion, as this can lead to tears or breakages. Instead, use smooth strokes in a single direction, filing down the length of the nail more often than up toward your fingers. As you finish each stroke, lift the file away from the nail and then go in for another separate stroke. For round or oval nails, make 4-5 smaller cuts at the end of each nail to get the curved shape started. If you're aiming for almond, coffin, or stiletto nails, cut down the sides of your nails more than the tip so that they become narrow toward the ends.
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History of nail files
The history of nail files dates back to ancient times, with evidence of nail care practices in various ancient civilizations. As early as 5000 B.C., women in India decorated their fingertips with henna, and Babylonian men coloured their nails with black or green kohl around 4000 B.C. The Chinese invented nail stains from egg whites, vegetable dyes, and beeswax around 3000 B.C.
Before the invention of the modern nail file in the late 19th century, people used various tools to shape and shorten their nails, including scissors, stones, metal, and even acid. In the 1830s, a foot doctor named Sitts created an "orange stick" from a dental tool, which women used to file their nails.
The modern nail file, a small, roughened strip of material, was first patented by J. Parker Pray of New York in 1883. The most common type, the emery board, is made of cardboard with emery or emery paper glued to it, making it both abrasive and flexible. Emery boards are inexpensive, disposable, and sanitary, as they can be thrown away after use, reducing the risk of transmitting diseases like nail fungus.
Nail files come in various materials, including emery, metal, glass, crystal, and ceramic. Some metal files are coated with sapphire (corundum). Glass and Bohemian crystal files from the Czech Republic are considered the best by many nail enthusiasts. Electric nail files were introduced later, offering a faster and more precise way to file nails, but they have faced consumer disappointment due to their potential to cause damage if not used properly.
Nail files have played a role in beauty trends, with cultural icons and singers influencing popular nail styles and shapes. Marie Antoinette, for example, was known for her perfectly shaped nails achieved with a "lime à ongles," a nail file-like tool made of carved pumice stone. This trend quickly spread through the French Court of Versailles. Today, nail files remain a common tool in many women's beauty routines, with the market for nail salon services in the US exceeding $8 billion.
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Different nail shapes
There are many different nail shapes to choose from, and it can be challenging to keep track of all the options available. The choice of nail shape can reflect one's personality, and it is important to find the shape that works best for you. Here is a list of some of the most popular nail shapes:
- Square – This shape is achieved by allowing the nail to grow out and then filing across the tip of the nail perpendicular to the nail's length while maintaining straight edges at the sides. It looks good on long nails but can accentuate the bluntness of short nails.
- Round – This shape is created by filing the tip into a circle that runs parallel to the shape of the white moon at the base of the nail (called the lunula). It is perfect for those who prefer to keep their nails short.
- Oval – This shape is achieved by filing the nail into an egg-like form. It requires taking off quite a bit from the sides of the nails, which can weaken them over time. It is a good option for people with wide nails as it makes them appear more feminine.
- Almond – This shape is a less drastic version of the stiletto shape. It is created by filing the sides of the nail to form a soft, shallow point at the centre, similar to the shape of an actual almond.
- Stiletto – This shape, sometimes called mountain peak or pointed, is not recommended for natural nails as it weakens them. The sides are filed away to create a long point at the centre.
- Squoval – This shape is a combination of square and oval. It is achieved by filing a straight tip and then softening the corners.
In addition to the classic shapes mentioned above, there are also some more unique options, such as the edge or arrowhead shape, which feature more dramatic angles and points. The straight-edged circle is another variation, similar to the square shape but with a semi-circular tip, providing strength and support for the nail.
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How to choose the right nail file
Nail files are tools used to gently grind down and shape the edges of nails. They come in various shapes and sizes, and choosing the right one is essential for achieving the perfect manicure or pedicure. Here are some tips to help you select the right nail file:
Consider the Nail Type
The type of nail file you choose depends on the type of nails you have. If you have natural, healthy nails, a medium to fine file will suffice for general shaping and smoothing. For artificial nails, such as acrylic or UV gel nails, a coarser file may be needed to shape and shorten the nails initially. Then, finer files can be used to smooth the surface. Additionally, if you have very thin or weak nails, opt for a finer file, like a glass file.
Understand Nail File Gradation
Nail file gradation refers to the varying levels of coarseness or grit on a nail file. The gradation affects how the file shapes and smooths your nails. Coarse files (60-100 grit) are ideal for filing down thick or hard nails and removing significant length. Medium files (100-180 grit) are versatile and suitable for general shaping and smoothing. Finer files are used for refining the shape and smoothing out any rough edges.
Choose the Right Shape
Nail files come in various shapes, including straight, banana-shaped, boat-shaped, and block-shaped. The shape you choose depends on your preference and comfort. Straight files are great for everyday use and can be used to achieve various nail shapes. Banana-shaped files have a gentle curve that simplifies filing, making it easier to access the sides of the nails without damaging the skin. Boat-shaped files combine a curved and straight edge, making them versatile and suitable for gel polish and acrylic nails. Block-shaped files have four sides and are often made with fine-grained surfaces for buffing the nail surface.
Maintenance and Technique
It is important to maintain your nail file by cleaning it regularly and replacing it when it becomes worn out or less effective. Additionally, proper filing technique is crucial to prevent nail damage. Always file in one direction, sweeping from the side of the nail to the centre. Avoid using the file like a saw, dragging it back and forth, as this can lead to nail breakage and trauma to the nail bed.
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Frequently asked questions
A fingernail file is called a nail file.
Nail files may be emery boards, ceramic, glass, crystal, plain metal files, or metal files coated with corundum.
Hold your fingers toward your face. Start from one of the outside corners and file toward the centre. Do not file back and forth across the entire nail tip as this can damage the nail.
The higher the grit number, the smoother the file. Nail files are used to shape the nails, while buffers are used to buff and shine the nails.











































