Features and Benefits:?Designed for use on Viega? MegaPress? fittings?Easy opening jaws designed for one handed use and securely hold fitting with 360?alignment?Dual pivot ring design provides superior Close Quarters access and are up to 30% lighter than the leading competitor?Compatible with M18? Force Logic press toolBlack iron press jaws & rings were designed for use on Viega? MegaPress? fittings and provide a faster alternative to threading and roll grooving to connect 1/2 in. to 2 in. schedule 5-40 black iron pipe. Milwaukee?s rings have a unique dual pivot design which provides superior close quarters access and are up to 30% lighter than the leading competitor. Milwaukee black iron press jaws and rings provide exceptional access and superior productivity when used with the M18? Force Logic press tools.