What is the correct angle for using a Phillips head screwdriver?

The correct angle for using a Phillips head screwdriver is 30 degrees because this angle allows for optimal engagement with the screw head. When the screwdriver is positioned at this angle, the tool fits securely into the cross-shaped recesses of the Phillips screw, enhancing grip and minimizing the risk of cam-out, which occurs when the screwdriver slips out of the screw head during turning.

Using a 30-degree angle helps maintain the necessary control and torque when turning the screw, making it easier to drive the screw into materials effectively. Additionally, this angle permits the user to apply consistent pressure while maintaining visibility of the screw, which is especially important in confined spaces or when precise alignment is needed.

While other angles, such as 15 degrees or 45 degrees, can be considered in certain scenarios (like working in tight spots or adjusting for specific torque requirements), they do not provide the same level of versatility and effectiveness as the 30-degree angle for standard applications involving Phillips head screws. Thus, the 30-degree angle is the most widely accepted and practiced for maximum efficiency and safety.