Using the Bosch GWX10-45E angle grinder is quite straightforward. First, make sure you've attached the auxiliary handle and wheel guard properly. To change the wheel, just use the single-lever wheel release system, and there's no need for extra tools. The X-LOCK mount makes the process fast and easy. When you start the grinder, its 10-amp motor will provide up to 11,000 no - load rpm. For extended grinding or cutting, the narrow grip design ensures your comfort. As for safety, always wear appropriate protective gear like goggles and gloves. When it comes to maintenance, the service minder brushes will tell you when it's time for preventative maintenance. Also, to keep the motor in good shape, let the directed air flow cool it during heavy - duty use. The epoxy - coated field windings are there to prevent debris from getting into the motor, but it's still a good idea to keep the grinder clean. The adjustable guard can be set at different angles according to your working needs, so adjust it to the right position before you start working.