Any recommendations for tile drill bit?

Proofread100

Having gone through 4 drill bits trying to drill through porcelain wall tiles, can anyone reccommend a decent brand that will do more than one job? 
We are using them exactly as recommended but the tips are not lasting at all. 
We don't mind paying for something decent but reliable. 

grumbler

It's worth saying what 4 drill bits you gone through/

Did you try diamond ones?

Proofread100

First one we got was a single diamond tipped one (supposedly) from B&Q. Had an arrowhead type end to it. The fins of the head broke off within minutes. Took it back and they replaced it but the next one did the same. 
Got a set from online which seemed to have good reviews but were not expensive. Again they didn't last. Will find the names. 

Proofread100

Ones from online were Marksman brand. Said they were for glass, porcelain and tile. Mentioned diamond in the description. 
First one was Universal tile drill bit. Perhaps B&Q own brand. Tungsten carbide arrowhead tip I think. Don't have the packaging any more. 

nofoollikeold

1. Tungsten carbide won't really touch porcelain, and it it does may well crack it.
2. The only material that will cut it is diamond.
3. You need a proper diamond drill, not an internet cheapo.
4. They look like miniature core drills, and are pretty expensive.
5. Most need to be used wet.  Squeezing a sponge over the hole usually works quite well.

john.h

One of these https://www.atsdiamondtools.co.uk/product/dry-porcelain-diamond-drill-bits-easy-coupling/

Jack_Cork

I've have used carbide but as stated you'll only get a couple of holes from one, and yes a risk of cracking. I have some more to do so was thinking of this https://www.amazon.co.uk/Diamond-Coated-Kitchen-Ceramics-Porcelain/dp/B07TYJVTC5/ref=pd_ybh_a_73?_encoding=UTF8&psc=1&refRID=G6WXZCC799ER6WG655E9

Ok they are all 6mm but thats all I need

531063

Always found these good:  https://www.screwfix.com/p/bosch-multipurpose-drill-bit-set-4pcs/95958  always start off with a small hole & work your way up and plenty of lub.

Proofread100

531063 said:

Always found these good:  https://www.screwfix.com/p/bosch-multipurpose-drill-bit-set-4pcs/95958  always start off with a small hole & work your way up and plenty of lub.

Thanks so much for all the replies. Thankfully haven't cracked any. 
Have ordered these ones now. 

grumbler

Let us the result. Personally, I have doubts. They do say 'ceramics' in the description, but porcelain is much harder to drill than usual ceramic tiles.

john.h

I tried one of those Bosch drill bits on a porcelain tile today, give up in the end.