Sets of glass, tile, and porcelain drill bits contain multiple bits in different sizes. They save users the time and hassle of purchasing the tools individually and are suitable for operations that regularly use a variety of drill bit sizes.

Diamond-tip core bits have hollow centers surrounded by cutting edges that have been coated with diamond abrasives to allow the bits to grind through porcelain, tile, and other very hard materials. They are typically used for drilling larger holes than would be possible with arrow-tip drill bits for glass and tile. The bits cut through the perimeter of the hole during drilling and leave a solid slug of material that can be ejected through a side slot on the bits.

The arrow-shaped tip on these drill bits helps stop them from moving, or walking, when starting a hole. The tip also allows the bits to drill holes that are smaller than their bit diameter. These bits create holes in tile, porcelain, ceramic, and mirror glass and are typically used for creating smaller holes than would be possible with diamond-tipped core bits for tile.

These kits each contain a drill bit for creating holes in porcelain tile with a scratch hardness of eight or less. They also come with a pilot bit for creating a starter hole prior to drilling, which helps prevent the drill bit from moving, or walking, when starting to drill. The drill bits have spiral flutes that pull dust and chips out of the hole during drilling.

These drill bits have multiple cutting edges that allow them to create holes in natural stone tile, slate, granite, and other hard specialty tiles more quickly than standard drill bits for glass and tile. The shape of the bits' tip helps prevents the bits from moving, or walking, when starting to drill.