Combo roll groover are 2-in-1 service tools that yield cost savings of time and money by allowing a complete change in minutes from power machine operation to manual work or back. They are operated either manually or under power. RGCOMBO2 forms standard rolled grooves in steel, stainless steel, and aluminum pipe from 1-1/4" to 6"; the formed grooves comply with the specifications required for mechanical coupling systems. The only adjustment required is for the depth of the groove.