The Powerbuilt® 4 piece stud remover puller extractor set is just the ticket for quick, safe and clean removal and installation of threaded studs on engine blocks and more. The set includes 4 SAE removers: ¼-in, 5/16-in, 3/8-in and 7/16-in to fit many popular stud sizes. Thanks to compact design, the sockets will reach studs in tight spaces. What’s more, the genuine chrome vanadium sockets can be turned using a ratchet, breaker bar or combination wrench. The Powerbuilt 4 piece stud remover puller extractor set comes complete with a handy storage case to ensure the sockets don’t get lost and are always ready for use. For use with hand tools only; not impact rated. Lifetime factory warranty.