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.
| Swing | 15" | 381 mm |
| Capacity (Mild Steel) | 0.5" | 12.7 mm |
| Capacity (Cast Iron) | 0.625" | 15.875 mm |
| Power | 1 hp | 0.7 kW |
| RPM | 5,000 RPM | 5,000 RPM |
| Dimensions | 30"L x 20"W x 71"H | 30"L x 20"W x 71"H |
| Weight | 426 (LBS) | 426 (LBS) |
