Rock Drills/Saws - Melfred Borzall Ogre

The Ogre stacked 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 motion, as well as to efficiently carry away cuttings. Angled fluid jets propel water opposite the reamer rotation to keep carbides clear of debris. It is fabricated so each cutter takes off only 1/2 inch at a time for smooth, efficient cutting. It is built with varying sized carbide blocks to prevent shaft wearing directly in front of the reamer body; has hard-facing on all other wear areas; and includes curved, hard-faced backup blades for added wear-resistance during pushbacks. It is available with three carbide cutter styles to maximize reaming production in a wider variety of tough conditions, as well as the option of a built-in swivel. Shark-tooth, conical aggressive and conical dome cutter options are available in cutting sizes from 8 to 48 inches. 800-558-7500; www.melfredborzall.com