Dry Diamond Drill Bits Set 3 Packs for Tiles Porcelain Ceramic Granite Porcelain Tile Marble Size 1/4“ (6mm), 5/16” (8mm), 3/8” (10mm), with Quick Change 1/4” Hex Shank and Storage Cases

When renovating your kitchen or bathroomwalls or fastening mirrors in bathroom or installing shower, you will need todrill holes on mirrors or tiles without cracking them, hence you will need touse these diamond drill bits to make those holes very precise.

Our porcelaindiamond core drill bits will meet your needs in every details.1.They come with universal 1/4 inch Hex Shank, which fit a variety of quick-changechucks, drills or drivers.2.The drill bits set includes 3 sizes of Dry Diamond Core Drill Bits for drillingholes with Diameter of 1/4“ (6mm), 5/16” (8mm) and 3/8” (10mm), to meetdifferent needs of hole.3.the diamond bits can be used at a higher temperature when cutting harder materials.

It can cut faster and last longer.4.Great for drilling clean holes to granite, ceramic, glass stone brick and marble tilestone Jars and similar materials5.Drydiamond drill bit integrates wax lubricant inside of the bit.

During drilling,this integrated lubricant will melt to cool the cutting surface, perfect forproject which lubricant is not applicable.