Rated 5 out of 5Â by SteveFromCardiff Does the job!
Bought this to drill through 12mm polished porcelain floor tiles, slightly in desperation after my normal tile drill has failed to penetrate even 1mm after 20mins of careful drilling.
Drilled the first hole in less than a minute, no problem. Successive holes each took slightly longer and longer as I guess the tip started to wear, but still looks good to drill more after 6 holes.
The drill instructions say to use dry, which is what I did i.e. I did not wet the tiip (up to you what you do though). Although I was hesitant to follow the instructions to run the drill at a very high speed, I quickly found that slow speed drilling was a lot less effective, and so ran the drill at the recommended higher speed - taking care to air cool it every so often to avoid cracking the tile
In summary, yes it is expensive, but well worth it - I would recommend this product!
16 Sep 2015
Rated 5 out of 5Â by dtr1026 Erbauer Diamond Tile Drill Bit
Great product, cuts through porcelain no problem, just remember to keep it wet.
29 Aug 2015
Rated 5 out of 5Â by DannYL great
expensive for. What I wanted it for
But done an amazing job
11 Aug 2015
Rated 3 out of 5Â by Arcticson Maybe not the best option
This 8mm bit drills ok.. and you probably need the drill guide (but take care to not touch the side of the hole or it just enlarges to 9+ mm). It does clog up and needs emptying often with inserting a thin nail.
After 4 holes in a 9mm porcelain tile it struggles. I switched to a Bosch Expert Diamond Tile Drill Bit 6mm for 1/2 the price....and did 8 holes before it wore out.
8 Aug 2015