... ram in a compact, easy to transport unit,2)With one man set-up and operation,the 918 is the ... requirements,3)The 918 mounts quickly to Ridgid 300 power drive.4)Designed to provide maximum efficiency,the 918 is ... 70008918Grooving attachment 2"-12"37KG 70008A918Acomplete set with power drive,220V,50HZ100KG 70008B918Bcomplete set with power drive,110V,60HZ100KG pipe roll grooving machine