DiamondCore Hole Drill #H3, 3mm
Solid DiamondCore Hole Drills for rapidly making holes in high-fired ceramics, porcelain, bisqueware, tile, stone or glass. The diamond section of the drill is a diamond matrix, not just a layer of diamonds on the outer edge. Drill holes for plugs, to hang pieces, making plant drain holes, fountain holes, or holes for sink basins etc. With DiamondCore hole drills it isn’t necessary to calculate shrinkage of a hole in order to get the desired hole size.
Keep the diamond section of the drill bathed in water while drilling. Use an ordinary cordless drill. Start at a slight angle to get started, then tilt upright and use light pressure, high speed and a gentle rotation motion.... "Letting the diamonds do the work." (be sure core is removed from drill after drilling)