On Wed, 22 Aug 2018 15:50:36 -0700, tabbypurr wrote:

On Wednesday, 22 August 2018 17:24:55 UTC+1, David WE Roberts (Google)
wrote:
On Wed, 22 Aug 2018 10:16:23 +0000, David wrote:

Looking at diamond drill sizes they are 38mm and 52mm, so logically
you use a 52mm core drill for 40mm waste.

Just double checking as it seems like a lot of over size.

Presumably it makes it easier if the hole is slightly off centre.

This question related to the Ikea thread because the current fitting
slopes slightly up hill through the wall yet there is scope to drill
a hole several bricks lower.

All my drill bits and core drills are hundreds of miles away. No room
in the car and I had no idea I would be tackling anything this
complex.

Bought a diamond core bit along with arbor and pilot drill.

I thought my cordless SDS drill might give it a go with the hammer
action.

I now read that the hammer action must not be used.

Wondering now if I should go back to Screwfix immediately and get a
mains powered drill to drive it.

Cheapest seems to be £30, which will probably barely do it.

Cheers


Dave R

Never use hammer & cordless is not too practical for this. Mains drills
started at a fiver last time I looked - Red Devil or something. Argos
have drills now for £18.


Bought the £29.99 one from Screwfix.
This has the added bonus that I can use chisels with it.
Already used that to clear the old white tiles which would have made mcore
drilling a bit difficult.

Just slow and steady plodding now.

Bought the long arbor so it should hopefully go all the way through from
the inside.

Cheers



Dave R





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