Using the Bosch GWX10-45PE angle grinder is easy. First, attach the auxiliary handle for better control. You can use the multi - grip paddle switch to turn it on and off. When it's time to change the wheel, take advantage of the X - LOCK quick - change mount. Just use the quick - release lever, and you can change the wheel without a spanner wrench. For different working angles, adjust the tool - free guard to your liking. When using the grinder, always wear appropriate safety gear like goggles and gloves. Avoid using it in wet conditions. To maintain this grinder, keep it clean. After each use, blow out any dust or debris from the motor and the gear housing. The epoxy - coated field windings help protect the motor, but it's still a good idea to store it in a dry place. Check the double seals on the gear housing regularly to make sure they are intact. If you notice any issues, stop using the grinder and have it checked by a professional.