Using your Bosch DBX4541P diamond blades is a breeze. First, make sure your angle grinder is turned off and unplugged. If you're using an X - LOCK grinder, just snap the blade onto the mount. You'll hear a click, which means it's properly attached. No need for any extra tools. For non - X - LOCK grinders that are 7/8 - inch arbor mounts, these blades are still compatible. When you're ready to cut, start the grinder and gently bring the blade to the material. Move the grinder steadily for a smooth cut. Remember to wear safety goggles, gloves, and a dust mask. When you're done cutting, turn off the grinder and wait for the blade to stop completely. To change the blade, if it's an X - LOCK grinder, just pull the release lever. For maintenance, keep the blades clean. After use, wipe off any dust or debris. Store them in a dry place to prevent rust. If you notice the blade isn't cutting as well as it used to, it might be time to replace it.