"The Ridgid RP241 press tool is an invaluable tool for plumbing contractors, providing consistent results on 1/2"" - 1 1/4"" copper press fittings and 1/2"" & 3/4"" black iron pipe for mega press. It is also a great investment for any plumbing contractor, as it is able to get jobs done quickly and safely. However, some users have experienced issues with the unit, such as it stopping working after only a few crimps."