drilling in ceramic floor tile
Two points come to mind for your difficulties. Ceramic tile is generally not that hard, could it be porcelain? Secondly, are you using a hammer drill or a rotary hammer. Hammer drillls, especially inexpensive ones, are really bad for melting drill bits in hard materials, as they have very little hammering action, even though they make a heck of a lot of noise, so the bit just spins and generates heat until it disintegrates. I would suggest switching to a Bosch or Hilti peercussion bit over the little spear point types.
Last edited by troubleseeker; 04-14-2008 at 10:19 PM.