<br><ul><li>These JET Drill Presses use a variable-speed motor with the stepped-pulley system, and come equipped with a continuously variable transmission. This enables use at a wide range of speeds, as well as the ability to change speed during operation. A scale-marked hand wheel that matches the desired machine speed is mounted to a reduction gearing system for precise operator control. This adjusts the gearing ratio between the motor's fixed pulley and the output shaft's variable pulley, changing the speed of the chuck. A tensioner pulley is implemented in the belt transmission to take up or release the slack in the belt as the speed changes.</li><li>Full bearing support on quill for maximum spindle stiffness</li><li>Handwheel speed adjustment of 400 to 5,000 RPM</li><li>Large 2-1/4" quill for greater accuracy</li><li>3" column diameter for maximum head support</li><li>6" stroke for deep hole application</li><li>Accurate depth stop for precise hole depths</li><li>1/2" drill chuck and arbor included</li><li>Safety collar</li></ul>
