DERIS manufactures
Traditional fixed blade PDC reamers. Available in sizes from 6″ to 36″, and can be manufactured in both welded and one-piece (at a higher cost), fixed blade PDC reamers perform well in the same formations that traditional PDC bits are suitable for, typically sandstone, limestone, shale, clay, sand and similar formations.
Traditional cone roller reamers, available in sizes from 6″ to 52″, choose between Millooth or TCl cutters. Customizable with any standard connection, works well in soft to hard formations