What tool is essential for creating fades and blends in haircuts?

Clippers are the essential tool for creating fades and blends in haircuts because they are specifically designed to cut hair at various lengths using guard attachments. This allows barbers to achieve a seamless transition from longer to shorter hair, which is crucial for a well-executed fade. The adjustable blades of clippers can be manipulated to remove hair quickly and create precise lines, making it easier to blend different lengths smoothly.

While razors can be used for texturizing and finishing touches, and scissors are important for cutting and layering, they do not provide the same versatility and control for fading as clippers do. Combs play a supportive role in styling and sectioning hair, but they do not cut hair. Therefore, for achieving the desired effects of fades and blends, clippers stand out as the most effective choice.