Adjustable socket wrench, universally socket wrench can easily withstands high torques, firmly and correctly grasp all nut and bolts in its adjustable size ranges of 10-19mm Suitable for any standard 3 / 8inch drive wrench Application, immediate to hold most nut, screws, hook, square head screws, bolt heads, and more Wide ranges of adjustability: replace 3 / 8 " to 3 / 4 " and 10 to 19 mm sleeves Easy to use, easy to handle large torques, firmly grasp, single hand operating, Manufacturer: Kaeltsyn