Which feature is crucial for a drill to handle different materials effectively?

Variable speed settings are essential for a drill to handle different materials effectively. Different materials require different drilling speeds to achieve optimal results. For example, drilling into wood typically requires a slower speed to prevent the material from splitting, whereas drilling into metal may need a higher speed to ensure clean cuts and prevent overheating. Variable speed settings allow the user to adjust the drill's speed according to the material being worked on, facilitating better control and reducing the risk of damaging either the drill or the material.

The other features, while useful, do not directly impact the drill's capability to work with various materials. A built-in laser guide assists with precision and alignment but does not affect the performance concerning different material types. LED lights provide illumination for visibility in low-light conditions, enhancing user experience but not influencing drilling capabilities. An ergonomic grip improves comfort during use, which can aid in handling the drill but does not directly enable adaptation to varied materials.