On Mon, 13 Nov 2006 04:01:28 UTC, "Matty F"
wrote:

wrote:
I bought a bungalow, with locks on most windows. I can't remove a
window to repair it, without removing the window lock first.
It has 2 one-way screws fixing it to the window frame. I can't
drill into the screws, as they are a hardened metal.

Does the screw head protrude from the lock, in which case maybe you can
grip it with vice-grips.
Or use an impact driver:
http://www.kk.org/cooltools/archives/000723.php

Sorry, don't see how that would help. Please explain!

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