I've looked through the screwfix brochure and they sell titanium tipped dril
bits would these be hard enough?

"Saudade" wrote in message
...
Martin Noakes wrote:
Hi all

I'm about to lift an Oak floor that has shrunk in order to re-lay it
after straightenin the boards.

Here's a picture one of the gaps!
http://www.songcity.co.uk/MyPictures/Floorboards1.jpg

Due to the shrinkage the screws have been bent over and I'm unable to
unscrew them.

The screws are hardened steel BZP and I wondered if anyone knew which
type of drill bit I would need to drill the heads off. I have a
couple of metalwork drills and they don't touch the screw heads.

Or maybe another suggestions/approach for unscrewing them.

Cheers

Martin

You need carbide drill bits (carbide tipped). You could try a bit big
enough to pop the head off but some threaded length may still grip the
board. I'm surprise the boards didn't split and bent the screws instead.