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What is the minimum grit level recommended when filing the natural nail?

  1. 120

  2. 150

  3. 180

  4. 240

The correct answer is: 180

When filing the natural nail, choosing the right grit level is essential for maintaining the health of the nail while achieving a smooth finish. The correct choice of 180 grit is considered ideal for this purpose because it strikes a balance between being gentle enough not to damage the natural nail and effective enough to shape and smooth the nail surface appropriately. A grit level of 180 is fine enough to not cause excessive thinning or roughness, which can happen with coarser grits. It allows for careful shaping and smoothing without being too abrasive. This method helps in maintaining the natural integrity of the nail while still allowing for enhancements like polish or nail wraps to adhere properly. Lower grit levels like 120 or 150 could potentially be too coarse for natural nails, increasing the risk of damage such as splitting or breaking. Meanwhile, a grit level like 240 is on the finer side and is better suited for finishing touches rather than initial shaping. Therefore, using 180 grit is the most effective approach when working with natural nails in a safe and caring manner.