Patent ID: 8607671

Claim:
A wrench for applying a drive torque at a drive element, said wrench comprising: an elongated handle; a clamping element comprising a torque-applying gripping surface; a drive element received at said torque-applying gripping surface of said clamping element; wherein said clamping element is adjustably mounted at said handle and is adjustable to impart a clamping force at said drive element; a trigger configured to adjust said clamping element relative to said handle to impart said clamping force at said drive element; wherein, responsive to a user actuating said trigger, said trigger adjusts said clamping element relative to said handle to impart said clamping force at said drive element irrespective of any movement of said handle relative to said drive element; wherein said trigger comprises an elongated lever pivotally mounted at said handle with a user actuatable portion at or near a grip portion of said handle and a clamping element engaging portion at an opposite end of said lever for engaging said clamping element; and wherein said clamping element engaging portion of said trigger is disposed at a gap established in said clamping element.