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.
Features:
- Speeds from 400 to 5000 RPM
- Handwheel adjustment sets the speeds
- Large 2-1/4 quill allows greater accuracy
- 3 column diameter for maximum spindle stiffness
- 6 stroke for deep hole applications
- Accurate depth stop for precise hole depths
- 1/2 drill chuck and arbor
- Safety collar