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What tool is primarily used to create a straight line when cutting hair?

  1. Razor

  2. Thinning shears

  3. Barber shears or scissors

  4. Hair clippers

The correct answer is: Barber shears or scissors

The tool primarily used to create a straight line when cutting hair is barber shears or scissors. These are designed to provide precision and control, allowing for clean, straight cuts along the hair's length. When a stylist aims to achieve a blunt cut or a well-defined perimeter, using shears enables them to accurately follow the desired line of cut, ensuring that all sections of hair are uniform in length. Razor tools typically create softer, textured edges rather than straight lines, making them more suitable for layering and textured styles. Thinning shears are used to remove bulk and add texture without altering the overall length significantly. Hair clippers can be used for particular styles, such as fades or buzz cuts, but they do not provide the same level of detail and precision for straight-line cutting as shears do. Therefore, barber shears or scissors are the optimal choice for creating straight lines in haircutting.