Drill bit set with three included sizes for versatile countertop work Sizes included: 40mm, 45mm, 50mm Accurate hole placement for countertop installations Robust cutting performance for porcelain tile and marble Improved chip removal with dedicated chip removal holes for faster waste discharge Key benefits All in one package provides multiple hole sizes to meet common countertop drilling needs without swapping bits Precisely engineered for countertop projects to ensure clean, aligned holes Capable of cutting through tough materials such as porcelain tile and marble, expanding your task options Chip removal holes reduce debris build up and improve drilling efficiency Use scenarios Drilling mounting holes in a marble kitchen or bathroom countertop for sinks, fixtures, or hardware Creating clean, precise holes in porcelain tile when installing a countertop backsplash or cutting through tile for outlets Installing hardware or running cables through tile or marble countertops, where accurate placement and efficient debris removal are important This drill bit set maintains a professional, reliable standard for countertop work, offering clear sizes, material compatibility, and performance features without unnecessary embellishment.