Is the electric tool drill switch adjustable for positive and negative rotation?

Yes, many electric drills have a switch that allows you to control the direction of rotation, often referred to as the "forward" and "reverse" modes. This feature is particularly useful for tasks that require both drilling and removing screws or fasteners. Here's how it generally works:

1. Forward Rotation: In the forward mode, the drill bit rotates in the clockwise direction when you squeeze the trigger. This is the standard rotation direction for drilling holes.

2. Reverse Rotation: In the reverse mode, the drill bit rotates in the counterclockwise direction when you squeeze the trigger. This mode is used for tasks like removing screws, bolts, and other fasteners.

The switch to control the direction of rotation is typically located near the trigger of the drill, making it easy to switch between forward and reverse modes while operating the tool. It's worth noting that not all drills have this feature, especially very basic or specialized models. However, it's common in many standard corded and cordless drills.

Before using the drill, always check the manufacturer's instructions to understand how to properly switch between forward and reverse modes and ensure you're using the correct mode for your intended task.