equipment JACK HAMMERS September 10, 2021 Posted by root 10 Sep BrandHaryrock, HavarockAir Inlet Size (NPT)3/4″Hex Shank Size7/8″ x 3-1/4″Minimum Hose Size3/4″ (19 mm)Air Consumption @ Load120 CFM (3398 L/min)ModelRH 658