... core bits for various types of stone Drill: Step Drill Hole Saw Drilling Tiles :-Fast, clean and efficient way to core holes in ... or as your requirement (6). Used to drill marble, ceramics, porcelain, tile, glass, fiberglass, quartz, bricks, and a variety of other materials. ( ... long life. (8). It is very easy to assemble and use with or without center pin. Drill: Step Drill Hole Saw Drilling Tiles