... maximum efficiency,the 918 is capable of grooving up to 12" schedule 10 and 6" Schedule 40 standard wall pipes,5)Roll ... set changeout is accomplished in seconds,6)SpecificationsCapacity:a)2"-12" Schedule 10 steel,stainless steel,PVCb ... ,50HZ100KG 70008B918Bcomplete set with power drive,110V,60HZ100KG pipe roll grooving machine