Cleveland Twist Drill was founded in 1876 by Jacob D. Cox II, son of a Civil War general and former governor of Ohio. The company became a leader in the manufacture of superior-grade high-speed twist drills and pioneered the development of steels made of molybdenum as a substitute for tungsten. By 1936 it was the world’s largest maker of high-speed drills and reamers.
Cleveland Twist Drill tools are manufactured at product-specific plants across the globe in ISO 9000-registered facilities. On-site development engineers and technical specialists assure that each tool meets the highest performance standards in the industry.
Cleveland cutting tools with TiN or TiCN coatings provide exceptional performance benefits. CTD coatings are matched with designs which are intended for aggressive material removal with significant increases in tool life and machining rates. Main product lines include:
- Drill & Reamer
- Combined Drill & Countersinks • Counterbores
- End Mills
- Milling Cutters
- Slitting/Slotting Saws
- Spot Drills
Greenfield Industries Inc. is an established leader in the industrial cutting tool industry. The company manufactures and sells drills, taps, end mills, and other cutting tools for a variety of industrial, maintenance, commercial, and construction applications under the brand names Cleveland, Chicago-Latrobe, Cle-Line, Cle-Force, Bassett, Vermont Tap & Die, and Putnam Tools.