Andrey, Drill and tap some small holes and make your own clips out of RF strapping material. I could send you photos if you want to contact me. I have the same system. Brent áÎÄÒÅÊ ôËÁÞÅÎËÏ wrote: > Hi, > Could somebody let me know about standard wafer holder for Balzers BAS450? I have smooth vertical surface without any tapping holes. How should I attach 2 inch wafer to it? > Thank you in advance, > Andrey.