Professional Drill Bit Hole LocatorThis product is a glass tile hole locator, used to assist in positioning the hole. Positioning Hole OpenerWith the positioning hole opener, there is no need to worry about the drill bit slipping because the glass and tiles are too smooth when opening the hole. Thickened Rubber Suction CupThe glass tile hole locator has two thickened rubber suction cups with strong suction power, which can be easily fixed on the perforated surface by pressing the handle. Bearing Slide Rail DesignThe bearing slide rail design facilitates the positioning of drill bits of different sizes; four bearings clamp the drill bit to determine the position; two oversized positioning screws, easy to turn and lock, and accurate drilling. Wide range of applicationsThe glass tile hole locator is suitable for drilling and positioning glass, ceramic tiles, marble, and ceramics. Specifications: Product weight: 494g Product material: ABS+bearing Clamping range: 4-83mm Package size: 29mm*13.5mm*5mm Usage steps: 1. Mark the hole to be punched. 2. Place the drill bit in the limit hole for positioning and press the locking position of the suction cup handle. 3. Turn the fixed knob to locate the fixed position of the bearing and stabilize the positioner. 4. Start the drill to open the hole. Tips: Water must be added during drilling. Proper cooling can extend the life of the drill bit. Notes: 1. Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. 2. Due to manual measurement, please allow a measurement deviation of 1-3mm. Packing List: 1 x Glass Tile Hole Locator