A slotted screwdriver is a hand tool used for turning screws with a straight, flat head. The blade of the screwdriver fits into the single horizontal slot on the screw's head, allowing for easy insertion and removal. Slotted screwdrivers come in various sizes to match different screw dimensions. This type of screwdriver is commonly found in households and toolkits, making it a basic yet essential tool for tasks like assembling furniture or fixing appliances. While it is simple in design, the slotted screwdriver is effective for many everyday applications involving screws, such as those found in electronics and construction.