[. . . ] Due to the continuing program of research and development, the specifications herein are subject to change without prior notice. â· Note: Specifications may differ from country to country. [. . . ] Hold the machine by the insulated grasping surfaces to prevent electric shock if you drill into a ``live'' wire. Do not touch the drill bit or the workpiece immediately after operation; they may be extremely hot and could burn your skin. CAUTION: Before plugging in the machine, always check to see that the switch trigger actuates properly and returns to the ``OFF'' position when released. For continuous operation, pull the trigger and then push in the lock button. To stop the machine from the locked position, pull the trigger fully, then release it. A speed control screw is provided so that maximum machine speed can be limited (variable). Turn the speed control screw clockwise for higher speed, and counterclockwise for lower speed. â· Use the reversing switch only after the machine comes to a complete stop. Changing the direction of rotation before the machine stops may damage the machine. CAUTION: Always be sure that the machine is switched off and unplugged before carrying out any work on the machine. To maintain product safety and reliability, repairs, maintenance or adjustment should be carried out by Makita Authorized Service Center. Drilling in wood When drilling in wood, the best results are obtained with wood drills equipped with a guide screw. [. . . ] However, the machine may back out abruptly if you do not hold it firmly. â· Always secure small workpieces in a vise or similar hold-down device. [. . . ]