A wrench that has an adjustable wrench head, a wrench handle, and an attachment means for attaching the wrench handle to the wrench head. The wrench head has an orifice configured to control the rotation of a work-piece such as a nut or bolt. The wrench handle has an attachment section and a gripping section. The attachment section is formed for attachment with the wrench head and has a hole with a central axis extending in a direction towards the wrench head. The gripping section is formed for gripping by a user and connects with the attachment section beside the central axis, whereby, when the wrench handle is viewed from an end view thereof, the gripping section is nonaligned with the central axis of the attachment section at the connection of the gripping section with the attachment section. The wrench handle is formed for at least partial rotation about the axis of the attachment section. And, the adjustable wrench head has at least one engaging surface creating an imaginary line diverging from the axis of the attachment section of the handle.