Kukko Stud puller with extra wide working range DescriptionThe knurling wheel presses the stud bolt securely against the internal serration.Extra large working range.Suitable for short stud puller ends. UseFor extracting stud bolts or torn parts. AdvantageWhile being bored out, the stud bolt is located in the key area and cannot break off. Safety informationDo not use any electrical or pneumatic servo screwdrivers or hammer drills.Protective blanket required.Protective goggles required.