Cutting Holes in Tile Different Drill Bit Options and Methods There are many ways to cut holes in tile. Some easy, some hard - here is a guide to my favourite Above you see a tile with a hole drilled through it. This is called a jig. Something to help line up the proper hole (in tub deck) and to keep the tile drill bit from wandering. The simplest way to cut a hole in tile is to use a diamond coring bit. These bits are expensive and should be well taken care of. With that said lets look at a simple method of drilling a hole in tile with a diamond coring bit. You might also use a glass and tile bit that looks like an arrowhead. Read below the later posts for other methods of drilling holes in tile. Round perfect holes for plumbing fixtures. The video below shows me using a scrap tile as a guide to hold the diamond coring bit from wandering while I drill the finished hole in the tile to be attached to the wall. Not all holes are drilled prior to installing the tile. It can be..