Patent ID: 8739661

Claim:
A device for tightening and releasing clamping tools, where the clamping tool comprises a clamping device, such as a locknut, a clamping screw or the like, and a base with a thread, which is complementary to the thread of the clamping device, wherein the device comprises a housing having two handles, symmetrically disposed with reference to a plane including a rotation axis of the device configured to symmetrically provide a torque for tightening or releasing the clamping device relative to the base of the clamping tool upon a rotation of the clamping device; a key insert pivotally supported relative to the housing configured for transferring said torque to said clamping device, wherein the key insert is connected by one of a screw in connector or a plug in connector within the housing and is removable from the housing, wherein the key insert comprises a lateral opening, and wherein the key insert is disposed eccentric to a rotation axis of the key insert relative to the housing that is defined by the screw in connector or the plug in connector passing through the key insert; an elastically supported element providing a torque compensating force acting between the base and the key insert; and one of a mechanical or an electronic dial indicator configured for determining the torque.