The DTA MGC Mosaic Glass Cutter is the tool you need for mosaic glass cutting. It can cut up to 3/8″ thick glass. The handle has a reservoir in it for oil, which is not included. Includes an oil refiller. Oil prevents glass fragmentation and prolongs cutter life. Tungsten carbide cutting wheel ensures clean cuts and long life. You will be satisfied with the results you get from this DTA MGC Mosaic Glass Cutter.