The Vevor 7/8" press jaw is designed for secure, precise pressing on RLS copper piping in high-pressure HVAC/R applications. Built from high-strength carburized steel with a hardness rating of at least 52 HRC, it is made for long-lasting performance and consistent crimps. Its compact design helps improve access in tight or confined work areas. The jaw is compatible with Vevor 24KN compact electric press tools and selected other 24KN press tool models. It is suited for residential and commercial piping installations including HVAC systems, gas pipelines, and radiant heating.