"had to drill 12mm marble tiles for a shower & bath screen, drilling had to be precise as it was close to the edge. This set made that very easy the drill guide held the bit in place & was easy to set up, the drill bit worked well & went through with ease. Good product that did what it's mean't to do just a bit expensive so hopefully it'll last."
"This kit is a must-have if you are using the thicker/heavier (expensive) tiles available today. The drilling guide takes some practice but is useful. The bits are efficient and overall the resultant holes are excellent."