Set of articulated wrenches each with two flexible top heads. These wrenches are made of chrome vanadium steel, which is a strong industrial steel. They are made to be used by professionals every day. The wrenches have the well-known Teco lifetime warranty on manufacturing defects, which is given to products manufactured for the professional craftsman Flexible joints on both sleeve sides The joints can be angled 180 degrees 12 edge sleeve ensures a good grip on the bolt and nut CrV industrial steel Matt surface treatment. Contents: 6 joint wrenches: 8x9, 10x11, 12x13, 14x15, 16x17, 18x19 mm.