The screw head is a raised triangle in the middle but the 3 corners are close to the edge of the countersink. So it needs something similar to a valve tool but with 3 points. Where can I find one?
I probably have one, my brother in law is a tool salesman, if you know its name I can probably get one for you?
It's called a insert bit
[url] http://www.amazon.co.uk/100-PIECE-SCREWDRIVER-SECURITY-BIT/dp/B0047WL5GK [/url]
I have a kit a bit like that, so probably worth a punt?
I don't think they will work as the gap between the 3 corners and the countersunk bit outer.
Can't really picture it but if it as a raised triangle can you use a normal hex/bi-hex socket on the corners?
check out the 2 sets in green trays and the one in the red box here: http://www.toolstation.com/shop/Power+Tool+Accessories/Bit+Sets/d80/sd650
red box one is also sold as a sealey product if you don't have a toolstation near you.
I'll get a picture one sec
http://www.flickr.com/photos/76005544@N03/6899394462/
http://www.flickr.com/photos/76005544@N03/7045491377/
Can anyone help?
I'd get an old buggered screwdriver and modify it to fit the hole.
I'll give that a go
Beat the shit out of it with a blunt screwdriver
Haha i've got the solution. As the screw is taking any strain or tight I just worked it round with a small screw driver...
Cut a slot in the top help unscrewing out nextime