The Ogre reamer from Melfred Borzall is built for jobs that have a lot of cobbles, shale, river rock, glacial till and hardpan. It is designed with a slow taper and deep-spiraled fluting to give it maximum mixing and pumping, and to efficiently carry away the cuttings. Angled fluid jets shoot water opposite the reamer rotation to keep carbides clear of debris. The stacked reamer is fabricated so each cutter takes off only a 1/4 inch at a time for smooth, efficient cutting. It’s built with carbide blocks to prevent shaft wearing directly in front of the reamer body, has hardfacing on all other wear areas, and curved, hardfaced backup blades for added wear resistance during pushbacks. It is available with built-in swivels and in cutting sizes from 6 to 48 inches, with custom sizes available. 800/558-7500; www.melfredborzall.com