On 03/31/2016 09:37 AM, Mr Macaw wrote:
On Thu, 31 Mar 2016 15:34:55 +0100, philo wrote:

On 03/31/2016 09:26 AM, Mr Macaw wrote:
These sound useful, ever used anything like this?
http://www.ebay.co.uk/itm/181742384239

They are of limited usefulness.

If the screw is locked to the point of having it's head break off, one
of those extractors will not work.

Often the screw head breaks off because it's rusty. Or more often, the
head has not snapped off, but you've damaged the phillips shape etc.




If it's rusty, no harm in trying penetrating oil.


If the screw is not seized up but the slot is simply stripped, the
extractor may very well work.