This Proto J7206M 3/8" Drive Impact Socket is a high-quality, durable tool that you will want to add to your collection.The black oxide finish of the alloy steel impact socket resists corrosion and offers durability. If you are looking for a durable, high quality impact socket, this Proto J7206M is the one for you. 3/8 in Drive Impact Socket 6 mm Size, Standard Socket, black oxide.