Tungsten steel drill bits for glass, ceramic, tile, and crystal, with hexagonal shank, titanium coating, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, set of 6

[High Quality] Made of hard alloy, this glass drill bit has excellent abrasion resistance and extreme hardness for a longer lifespan. The titanium-coated surface is anti-oxidant and will not discolor. [6 Sizes] Glass drill bit with 6 different sizes: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, all with a 1/4" hex shank, perfectly suited for various tasks. This drill bit is marked with the dimensions. [Precise and Smooth Hole] Excellent for making clean and precise holes in glass and tile. The fine edge and hole are smooth and complete, without burrs. [Sturdy and Durable] Glass drill bits with a hex shank are fast and efficient. Using water lubrication will greatly extend the life of the drill bit. [Wide Application] Essential for DIY and home enthusiasts for drilling Ceramic mirrors with glass tiles and other rigid and fragile work surfaces.