Features: • The most ingenious stud and pipe nipple pullers available. Unique two-piece system can be used to remove stubborn studs and nipples, as well as install new ones without damaging the threads. Tapered collets thread onto stud, even if only a few threads are exposed. Tightening the housing bolt draws the collet into the housing and clamps the collet onto the stud. Doesn’t damage threads. Larger sizes are available as a special order. • NOTE: Avoid bottoming or shouldering studs to avoid shearing or damaging stud or workpiece.