Hand tool e.g. screw driver, torque providing device for tightening/loosening screw, has handle with movable part that is made parallel to fixed part to form normal handle or perpendicular to fixed part to reduce exerted forces

摘要

The device has a handle with a fixed part (1) aligned in parallel to an axis of a hand tool (2). A movable part (3) is connected to the fixed part by an axle (4) for either to be in parallel to the fixed part to form a normal handle used for providing moderate forces, or to be perpendicular to the fixed part to reduce the forces exerted by a user. The movable part is guided into a groove for the opening and closing positions.