Extension Socket 19mm Corner Steady Winder for Drill BJ460When winding in or out the legs on your caravan you may find that your standard socket is just not long enough for the job. To make life easier this extension socket is perfect for the job. This extension socket gives you a 12 inch extension and is suitable for use with 10mm drill chucks. The socket itself is a 19mm socket, made from strong and durable steel.