1. Versatile Compatibility: Accommodates drill bits ranging from 4 to 83 mm, ensuring broad application across various materials including ceramic tiles, glass, and marble. 2. Precision Engineering: Features precise calibration for accurate drilling. Robust steel construction and a fine-tuning knob enable exact positioning and consistent hole alignment. 3. Superior Suction Stability: Equipped with natural rubber suction cups for secure attachment to smooth surfaces, enabling stable, slip-resistant drilling. 4. User-friendly Operation: Designed for intuitive use with simple setup, convenient locking mechanism, and adjustable components suitable for all skill levels. 5. Durable Construction: Made from high-quality steel and industrial-grade plastic for long-term reliability and consistent performance. Usage Steps: 1. Mark the location for the hole. 2. Insert the drill bit into the guide hole and press down the suction handle to lock in place. 3. Tighten the positioning shaft to secure the tool. 4. Begin drilling. Color: As shown Material: Plastic + Metal Package Contents: 1 x drilling locator