Achieve flawless, precision drilling in even the toughest materials with our diamond hole saw drill bit. Expertly crafted with a premium diamond coating, this tool delivers clean, smooth holes in glass, ceramic, tile, marble, and more making it ideal for both professional and DIY projects. Engineered for durability and efficiency, it reduces chipping and ensures a long life, saving you time and money on replacements. Available in multiple sizes to suit every need and designed with an easy-to-use universal fit for most drills. Upgrade your toolkit with this must-have accessory for superior results every time. Diameter: 28mm.