1. Purpose of filing at a 45-degree angle on both sides
- To create a proper nail form: This helps the nail appear balanced, with clean, sharp edges.
- To maintain the strength and straightness of the nail body: Filing correctly at a 45-degree angle ensures the sides of the nail stay parallel, preventing the body from collapsing inward (pinching) or flaring outward (widening).
- To support correct g-point formation: This ensures the apex (stress point) is properly centred, making the nail both strong and aesthetically pleasing.
2. When to file at 45 degrees
- After applying and removing the form (if working with forms), or after completing the acrylic or gel overlay.
- During the general shaping phase: shaping the nail structure before fine buffing or applying colour gel.
3. How to hold the nail file correctly
- Hold the file firmly but allow the wrist to stay relaxed and natural.
- Tilt the file at approximately a 45-degree angle to the side of the nail.
- Place the file gently against the nail edge without pressing too hard.
4. Filing technique
- Left side: Position the file at the left edge of the nail, tilt it at 45 degrees, and gently file from the bottom of the sidewall upwards towards the free edge in a straight motion.
- Right side: Repeat on the right side by either switching hands or adjusting the angle of the file, again maintaining the 45-degree tilt.
⚡ Important points:
- File each side about three to five gentle strokes, depending on the thickness of the nail.
- Keep the pressure even and avoid forcing the file, which could damage the nail.
- Check carefully: the edge of the nail should be straight and even from the cuticle to the tip, without any dips or bulges.
5. Common mistakes
| Mistake | Result |
|---|---|
| Filing at the wrong angle (not enough 45 degrees) | Nail loses shape, leading to pinching or flaring. |
| Pressing too hard while filing | Thins the nail edge, weakening the structure. |
| Filing one side harder than the other | Nail becomes uneven and unbalanced. |
| Not inspecting the nail after filing | Uneven side edges become visible when applying colour gel. |
6. Pro tips from experts
- Gently pinch the nail sides between your thumb and forefinger while filing. This helps stabilise the form and keep the filing straight.
- Check the nail from eye level (looking across the nail) after finishing each side to ensure the edges are even.
- Always use a new file or one with a medium grit (around 180 grit) for shaping. Avoid using files that are too fine or too coarse during the shaping phase.
