We would like to have one sample of your largest round disk harrow. Diameter 26 inches or so? We manufacture picks, and use the disk harrows in the pick. We cut them like they were a pie. and use these as the blade. If you look on my website: http://xxxxx/docsplace/coiltek/coils4.html First item on the left as you scroll down the page you will see the pick. Is there any chance of getting these disc blades pre-cut? We would probably start with 200 full disc to start, and if you could cut them that would be even better. My email address is xxxxx I am in the United States. Thank you! Dr. Lousignont