Three times speed-up for quick and efficient screw removal: Insert the screwdriver into the second slot and lock it in place. Then, turn the middle handle, and the screwdriver shaft will rotate along with it. As you turn the middle handle one-third of a circle, the shaft will rotate one full circle; turn it two-thirds of a circle, and the shaft will rotate two full circles. When you turn the middle handle one full circle, the shaft will rotate three full circles. This function provides a three-to-one speed-up for faster screw removal and time-saving. 3x speed, quickly remove screws and save time 3x torque, effortless operation Consistent rotation, durable and practical Versatile components for DIY and multiple uses Sleek design, comfortable grip, ergonomic Great for home, automotive, and electronics repair Compatible with various screw types and sizes Convenient carrying case for storage and organization