The PG350 Diamond Tile Drill 36mm Hex is made for the wet drilling of 6-72mm diameter holes. This high concentration diamond rim, self-cooling tile drilling bit is self-centring meaning it never runs off and scratches the tile. Offering a professional solution for the infrequent driller, the PG350 has a water retention sponge and is ideal for use with all cordless drills. Easy to use, the PH350 creates perfect laser sharp tear free holes in the strongest of materials.