Using the Bosch HC8521 rotary hammer core bit is easy. First, make sure your hammer drill has an SDS-Max chuck to fit the bit. Insert the bit firmly into the chuck. When starting to drill, apply gentle pressure. Let the bit do its job, and don't push too hard. This will help the wave design work effectively and drill holes up to 40% faster.
When it comes to safety, always wear safety goggles to protect your eyes from debris. And remember to wear ear protection as the drilling can be noisy.
For maintenance, after each use, clean the bit with a brush to remove any dust or debris. Check the carbide teeth regularly. If they're worn out, it might be time to replace the bit. Store the bit in a dry place to prevent rusting. With proper use and care, this bit will serve you well for a long time.
