I want to put a clean hole through a cavity wall which has render on the
outside (and tiles on the inside!) for a tumble drier outlet as having the
window open whilst drying is making the kitchen very cold at this time of
year.

I guess a core drill would be the way to go (as opposed to drilling,
chipping out bits of brick manually). I've a basic 500w mains drill which I
think may not be enough for this sort of thing (or am I wrong). Also, the
cost of the core drills are quite expensive. So - I thought about hiring
one. Quick look on HSS's website says £38 + VAT for a day's hire (or £47.50
+ VAT for a weekend). This seems quite expensive for what should
(hopefully) be less than 30 minutes use.

So - any other suggestions/ideas? Anywhere I may hire this cheaper from?
Are there cheap core drills out there which I may be able to use my 500w
drill to do just one single job and then throw (the core drill) away?

Is it possible to make a neat hole through render for this purpose without
using a core drill? I'm happy to do it manually just drilling and chipping
away at bricks - but I don't want to damage the render by doing this.

Thanks

D

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