Using the DP - 1512F - HD drill press is easy. First, make sure it's plugged into a 110 - volt power source. You can adjust the spindle speed between 500 and 2600 rpm according to your needs. Place your workpiece on the 12 - inch round table and use the rack and pinion system to raise or lower the table as required. When using the drill, insert the appropriate drill bit into the chuck with a maximum capacity of 5/8 - inch. As for safety, always wear safety glasses to protect your eyes from debris. Keep your hands away from the spinning drill bit and moving parts. For maintenance, regularly clean the drill press to remove dust and chips. Lubricate the moving parts like the spindle and the rack and pinion system to ensure smooth operation. Check the belts and other components periodically for wear and tear. Remember, the specifications may change without notice, so stay updated.