Never had a house where the knock out holes lined up.I remember going to a new build (being built by a gang of Bulgarian builders). They were using the wooden FinnJoist(?) I-beams. These are made with a number of push out holes in the beams.
This makes it a doddle, as a pop with a hammer on each joist, and there's your cable run.
HOWEVER
the joists are not symmetrical and
the muppet builders had not set out the beams so all the holes aligned. Not a problem for me as the cables can zig and zag. The plumber, however was not amused. (He was from Poland).
Same here Tel when I used to do house bashing I beam joists only came in at the end of me doing it.25mm sds auger bit in 110V makita. last job i did, the joists were 4" thick. 100+ holes in 1 hour.
Yes i melted the brush holder on mine doing that, the trick is to put it in first gear meaning the motor and fan are going a lot quicker.Morning all
What ways do people drill out there timbers? I have started using an impact driver but its very noisy!!
My makita combi drills are ok but dont like doing it for long until they heat up.....