【Material】This wrench is made of stainless steel, chrome-plated on the surface to make it stronger, and the built-in chain drive mechanism increases the smoothness during use and improves the durability of the wrench 【Standard Size】This extension wrench length: 15.4*1.4*0.6 inches, equipped with 4 types of drive adapters, including 1/4 inch, 3/8 inch and 1/2 inch square drive adapters, ensuring compatibility with various sockets, achieving multi-functional use, expanding the versatility and compatibility of the tool set 【Torque Capacity】The impact wrench set can be used with a variety of ratchet wrenches, with a maximum torque of 53 ft/lbs, providing excellent power for challenging tasks 【Versatile】This eccentric extension wrench set can be extended in a small space, so that the ratchet wrench can also have room to move, with a small swing range, improving work efficiency 【Wide Application】This extension wrench set weighs only 1.5 pounds, easy to carry, and is very suitable for automotive repairs, construction projects and other demanding applications Specifications: Material: High carbon steel Offset extension wrench size: about 39*3.5*1.5 cm/15.4*1.4*0.6 inches (length*width*height) Offset extension wrench hole distance: about 35.5 cm/14.0 inches 3/8" to 1/4" square drive adapter size: about 3.3*0.7 cm/1.3*0.3 inches (length*width) 3/8" to 1/2" square drive adapter size: about 3.3*1.3 cm/1.3*0.5 inches (length*width) 3/8" to 3/8" square drive adapter size: about 3.3*1 cm/1.3*0.4 inches (length*width) 3/8" to 1/4" bit drive socket size: about 2.5*1.2 cm/1*0.5 inches (length*depth)