Nail File Grits Explained for Nail Technicians
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Understanding nail file grit is essential for nail techs, as it directly impacts the quality of your nail services.
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Nail files are categorised by their grit, which refers to the level of abrasiveness or coarseness of the file surface. Here’s all you need to know as a nail tech about nail file grit:
Understanding Grit Numbers
Nail files come in a variety of grit numbers, typically ranging from around 80 to 800 or more. The higher the number, the finer the grit. Lower numbers indicate coarser grit, while higher numbers indicate finer grit.
Coarse/Low Grit (80-100)
Coarse grit files, such as 80 to 100, are used for heavy-duty work, like shaping and shortening nail extensions or removing acrylic or gel extensions. They quickly and efficiently remove material but are not recommended for natural nails, as they can cause damage or lead to nail thinning.
Medium Grit (100-180)
Medium grit files, in the range of 100 to 180, are versatile and can be used for shaping, refining edges, and smoothing out rough spots. They are suitable for both natural and artificial nails.
Fine/High Grit (240-800)
Fine grit files, between 240 and 800, are ideal for finishing and refining the nail shape. They’re gentle enough to use on natural nails without causing excessive damage. These files are often used for finishing touches.
Higher grit files can be used for polishing and shining the nail surface, as well as creating a smooth, glass-like finish. These files are often used in the final steps of a manicure.
Buffing Blocks
Buffing blocks often have various sides with different grits. They are used for smoothing and buffing the nail surface, creating a glossy finish. Buffing blocks are usually quite gentle and can be used on both natural and artificial nails.
Nail File Selection Guide by Nail Type
| Natural Nails | Use fine grit files (240+ grit) on natural nails to prevent damage and thinning. |
| Acrylic Nails | Start with coarser grits (80-100) for shaping, then finish with medium grits (100-180). |
| Gel Nails | Medium to fine grits work best for gel nail systems to prevent heat build-up. |
| Professional Buffing | Create that perfect shine with specialised buffing tools. |
How to Choose the Right Grit As a Nail Technician
Choosing the right grit depends on the specific task. Coarse grits are great for shaping and removing material, medium grits for refining, and fine or extra fine grits for finishing and polishing.
For natural nails, use files with finer grits to minimise damage.
For artificial nails (acrylic or gel), it’s best to start with a coarser grit to shape and then move to finer grits for finishing.
Sanitisation Practices
It is important to properly sanitise your files and buffers between clients to prevent the spread of bacteria and infections.
Importance of Quality
Invest in high-quality nail files to ensure longevity and consistent performance.
Proper Filing Technique
Use a light touch and gentle strokes, especially with finer grit files, to avoid over-filing or damaging the nails.
Always file in one direction (from the outer edge toward the centre) to minimise damage and prevent splitting.
Understanding nail file grits and their appropriate usage is essential for achieving professional, flawless results. Choose the right grit for each task, prioritise client safety, and refine your technique to provide excellent nail services.
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