Function This Hole Drill provides angle control, strong suction, and convenient drilling after the position is determined. It is designed to fix the drilling position on flat surfaces before holes are drilled, such as glass, tiles, marble, or any smooth surface. Adjustable Drill Guide The adjustable drill guide accommodates hole sizes from 6 mm to 83 mm (0.24 in to 3.27 in), making it suitable for a wide range of drilling tasks. Material The Glass Ceramic Hole Drill Guide is made from stainless steel and rubber, ensuring longterm durability and reliable performance in various applications. Secure Suction Base The 4.53 inch diameter suction base keeps the guide firmly in place on your chosen drill site, providing stability and precision whether you are working on walls or floors. Use Scenarios Drilling precise holes in glass panels for hardware, shelving brackets, or plumbing passes without slipping. Drilling through ceramic tiles during bathroom or kitchen installations, ensuring straight, clean holes. Creating holes in marble or other smooth surfaces to install anchors or fixtures where accuracy is essential.