1. Reliable Materials: Made from hole saw and quality carbon steel spindle, this door lock installation set is not easily deformed or damaged. Its wearresistant properties make it safe and ecofriendly while ensuring reliable performance for longlasting door security. 2. Wide Range of Applications: This door lock installation set ensures effortless installation for 23/8' and 23/4' backset wooden doors. A template for 13/8' and 13/4' thick doors and the most commonly used lock sizes is included, making it widely versatile. 3. Save Time and Effort: This door lock installation set comes with a template that guides you to drill holes precisely and quickly, saving time and effort. You can adjust the template to fit different door widths and lock edges. 4. Exquisite Craftsmanship: The door lock installation set stands out with its unique shape and craftsmanship, ensuring a precise and smooth drilling experience. The brilliant erosionresistant colors and lightresistant surface provide longlasting durability.