Cutting tap hole in granite sink

[kgreen84]

Uncle brought a granite sink from B+Q with part hole drill. He doesn't want to bash it out. Will cutter in link work ok?

I presume the arbor in the middle will be ok too?

http://www.diy.com/diy/jsp/bq/nav.j...mpid=4&tmad=c&ecamp=cse_go&CAWELAID=266978584

 

[seco services]

more like a composite sink not granite.

thats a tile cutter you need this cutter.

 

[cozzmic]

Bash sorry tap it out from the good side of the sink with a ball peen hammer. That is why it is cut part way through. It will break out ok and save you buying a hole saw.

 

[kgreen84]

He is worried about hitting it as it wasn't cheap. Bashing it from the good side, will it damage it or will it eventually come out in 1 piece with a little making good to do?

Seco where can I get one of those from? I spoke to the itelligance at B+Q who don't have a clue. Am only doing the running round cause he is on long shift and I am a nice niece!

 

[seco services]

bq do them just take note of the size you need.

 

[PEDANTICVINDICTIVEMAN]

Make sure the center hole marked on the good side, actually corresponds with the center of the part hole underneath, had 2 wrongly marked with a sticker at the factory, I would buy the cutter.

 

[kgreen84]

Sticker and instructions say 35mm which we are presuming is a standard size as he wants to use the old tap (old sink is the same beige colour as is the tap). Will a standard cutter for say metal do or is it a special one that i looked that is diamond covered?

 

[seco services]

just a metal one the diamond one you had is for ceramic tiles.

 

[kgreen84]

and that won't be too rough for it? I've got a standard arbor laying around he can borrow just thought it needed to be a special one

 

[seco services]

thats all i've ever used its only a few mm you need to cut out take less that 10 seconds to do.

 

[kgreen84]

ok I will blame you if it all goes wrong Sunday morning when he gets round to doing it

 

[seco services]

please feel free if all go's well i except cheques.

 

[kgreen84]

touche! (if thats how you spell it)

 

[seco services]