IWISS IWS-1632AF Plumbing Copper Pipe Crimper Press Tube Tools with 1/2" 3/4" 1" Jaws Suitable for Viega Copper Only, Pro-Press,Elkhart, Conex Pipe Fittings Good for Viega ProPress, Elkhart, Conex copper fittings. C/W 1/2", 3/4", and 1" interchangeable jaws.NOT FOR CORNER OPERATION 360 degree rotatable head for easy access. A labor saving tool for copper pipe connection, not for PEX pipes. Forging craft promises jaws to give pipe fittings an accurate press without scratches