I have a condensation problem in my home and it seems that it is down to
poor ventilation as all the windows are double glazed with no vents. So, I
have bought some trickle vents from the company who recently built our
Question is: what is the best way to drill through the steel in the frames.
I have started by marking and drilling a series of holes, but this will take
a very long time! Is there a better drill bit (for Bosch SDS) or better yet
I need a router - will Rotozip do the job?
Thanks in advance for any advice!