Multiple sizes available: includes three hole saw sizes 40mm, 45mm, and 50mm to fit a variety of drilling needs on countertops. Suitable for both DIY and professional projects. Precise hole placement: engineered for countertop applications to deliver accurate, centered holes every time on porcelain tile and marble surfaces. Easy material cutting: capable of cutting through tough materials such as porcelain tile and marble with minimal effort, helping to improve productivity and reduce effort. Efficient chip removal design: integrated chip removal holes help clear debris quickly, minimizing clogging and enabling smoother drilling operations. Practical applications Drilling a clean hole for a sink or faucet through a marble or porcelain countertop, using the appropriate size (40mm, 45mm, or 50mm). Creating passthrough openings for plumbing lines or electrical cables in tile countertops when installing builtin appliances or fixtures. Cutting precise openings for outlets, drains, or fittings in ceramic tile or marble countertops during renovation or installations.