Adjustable screw- and bore extension for manually operated and hand-moving screw and drilling device, has electric or pneumatic actuator and two coaxially variable and firm components

摘要

The adjustable screw- and bore extension has an electric or pneumatic actuator and two coaxially variable and firm components. The clamping surfaces (7) are placed at the drive side of the extension for rotation prevention clamping. A connection element (3) is integrated at the other end of the extension for supporting various retainers or clamping elements.