Using the Bosch GWS18V-45CN angle grinder is straightforward. First, make sure you have the right battery (sold separately) and insert it properly. To start, simply use the sliding switch. When you're ready to make a cut, the soft - start technology will ease the grinder into action, reducing the initial torque. For better control and comfort, adjust the two - position Vibration Control side handle according to your preference. When using the grinder, always keep safety in mind. The KickBack Control helps prevent sudden reactions if the tool binds, but still be cautious. If you accidentally drop the grinder, the drop control will automatically shut it off. Also, the restart protection stops the tool from starting up when you insert the battery. For maintenance, regularly check the burst - resistant wheel guard for any damage. Keep the tool clean and store it in a dry place. The large spindle lock makes it easy to change accessories. Remember, the Electronic Cell and Motor Protection is there to protect the tool and the battery from overheating and overload, but don't push the tool too hard for long periods. With proper use and care, this grinder will serve you well for a long time.