1. Measure and mark the tile: Measure the tile where it needs to be cut and mark the location with a pencil or marker.

2. Use a wet saw: A wet saw is the best tool for cutting quartz tiles. It has a diamond blade and uses water to cool and lubricate the blade, preventing it from overheating and cracking the tile. You can rent a wet saw from a hardware store.

3. Adjust the saw blade: Adjust the saw blades cutting depth to ensure that you dont cut the tile too deep.

4. Place the tile on the saw: Turn on the saw and place the tile on the saw, making sure the blade lines up with the marked line.

5. Begin cutting: Slowly push the tile towards the blade, allowing the saw to cut through the tile. Keep your fingers away from the blade, and wear safety goggles and gloves.

6. Smooth the edges: Once the cut is complete, use a honing stone to smooth out any rough edges or burrs.

7. Clean the tile: Wipe down the tile with a damp cloth to remove any debris or dust.