【Package Include】：The imapct extension socket set ncludes 8 pc extension bars in 1/4″,3/8″ & 1/2″ Drive impact extension bar, 4pc Impact socket adapter, 3pc Impact universal joint: 1/4″Drive, 3/8″Drive, 1/2″Drive, 3 pc Impact coupler :1/4″Hex*1/4″Drive., 1/4″Hex*3/8″Drive., 5/16″Hex*1/2″Drive.
【Material】：The impact extension socket set is made of Heavy-duty Chrome-Vanadium steel alloy (50BV30),durable and hard to use,a corrosion-resistant black phosphate finish.
【Your need】：This high-quality set can meet all your needs for tools.
【Clearly Size】：High-contrast size marking is permanently laser etched and easy to read, even in low light.
【Easy to carry】：Our Socket Set come with a heavy duty blow molded storage case, easy to carry, transportation and safe storage.