Uniweld’s Type11-6 Rosebud heating tip is used in preheating and straightening. Tip elbow is copper, mixer and nut are brass. Overall length is 12″. Tip has two O-Ring seals so tip nut only needs to be firmly hand tightened. Tip will fit Uniweld welding handles WH360, WH360L, 72L9, and 72L11.