Abstract: An improved adjustable socket for use with a ratchet wrench drive handle to loosen or tighten bolts, nuts and other threaded workpieces, is comprised of a hollow cylindrical casing having a passive end adapted to receive a wrench handle protuberance, an opposing work end adapted to fit about a workpiece and a sidewall interconnecting such ends with one another and defining a cavity therebetween. A plurality of uniformly spaced apart through-openings are provided in the casing sidewall between the opposing ends thereof and a cylindrically shaped gripping member is pivotally mounted along a vertical eccentric axis thereof within each through-opening so as to be selectively moveable into and out of the casing cavity. In use, the adjustable socket is mounted onto a wrench handle and positioned about a threaded workpiece.