Chucking reamers, also known as machine reamers, have a 45-degree bevel lead and cut only on that lead, and a round shank that cannot be used with a wrench, i.e. driven by hand. Chucking reamers are the most commonly used type of reamer. They are used in drill presses, turret lathes, screw machines, and other machine tools. "CNC length chucking reamers" have a shorter overall length than "chucking reamers," and are intended to be used at higher speeds with less vibration than a longer tool.