What is square screw driver head?

A square screwdriver head is a type of screwdriver that features a square-shaped tip rather than a flat or Phillips head. The square head is designed to fit into square-shaped screw heads, which are typically found in older appliances, machinery, and other items. The benefits of using a square screwdriver head include increased torque and stability, which can help prevent stripping and other damage to the screw head. Square screwdriver heads are also less likely to slip or twist during use, which can cause injury or damage to the workpiece. However, they are less common than other types of screwdrivers, and may be harder to find in some hardware stores or online retailers.