Multi-Function Hole OpenerSave more than 70% of your work time! It is an ideal tool for any craftsman and home decoration. Ordinary hole punches need to be positioned first on the ceramic tile glass, which is very troublesome. Buy our product with a positioning hole opener, which is very convenient to use and quick to open holes. Main Features Efficient drilling: Electroplated emery material, thick brazed emery, durable, sharper drilling, and higher efficiency. It has strong