Champion Cutting Tool Proline PTC3 Porcelain Tile Cutter industrial diamond grit is vacuum brazed to the raised cutting edge creating a strong bond between the diamond and tool body. This insures fast penetration of material and long tool life. The raised edge will insure accurate positioning the drill. A reverse spiral feeds water to the cutting edge. Slots at the end of the drill will allow water to reach the cutting edge. The core removal slot will evacuate the tile core slug, which permits cutting the next hole. Some of the materials PTC3 and cut include travertine, marble, slate, ceraminc tile, porcelain (including grade 5+), granite, glass, quary tile/terracotta, agglomerate/cement tile.