Here's a really nice New Holland ST770 (DMI Ecolo-Tiger) disk ripper. It has 7 shanks, parabolic shanks, 7" points, folding wings, front and rear cover disks. There are no aftermarket welds or signs of abuse. The covering disks on the rear are 18" disks and show very little wear. The front disks are 22" blades and are worn 1/8". This is a consignment piece that is farmer-owned and well maintained.