Wiring 10 y.o. house with Ethernet. Read this; picked a spot; drilling 1st hole through the floor:
Started with cordless drill, but soon after changed to corded one. @ ~1.5" depth the flex-bit got stuck and the shank stripped. I thought of filing off 3 flats to allow for tighter grip, validating that idea found this question. Confirmed: it worked!
I got ~3" down, but suddenly now the bit doesn't seem to bite anymore - just burns the wood, I don't understand why. Tried long enough, varying pressure - but no go; the bit comes out with charred gunk. Cleaned it several times:
@Harper says "Hitting something super-hard means don't drill there" answering this question.
There are no noises of any kind. I'd expect some screeching or squealing if the bit was hitting a metal plate..
Picked spot lines up with between-the-studs cavity downstairs, which already houses TV cable (and thus has an outlet!) - I want to build up on that. Any advice?
Will try drilling a new hole to the right of the first one - through the same drywall opening. Would like to avoid messing with drywall: never done that before, and even if easy it involves painting => color matching..