These drivers are sold by McMaster Carr. Look for "spanner head screws and 
drivers." They come in a variety of sizes. Go to their home page and type 
spanner head drivers or tamper resistant drivers into the search window. 

http://www.mcmaster.com/

If you can't find it at McMaster Carr, try WW Granger

http://www.grainger.com/Grainger/wwg/start.shtml

Diane Gutenkauf
[log in to unmask]
Business Developer, Museum division
Exhibit Works, Inc
www.exhibitworks.com

On Fri, 13 Jan 2006 07:10:22 -0800, Amy Bruning <[log in to unmask]> 
wrote:

>Hi Folks,
>  I have an exhibtion fixture (a plexiglass box mounted on a pedestal) 
that I am unable to dismantle, because I don't have the proper tool.  It 
was made at another site, no one seems to know where, before I was hired.  
I would like to purchase, or better  yet borrow, a tool to open this case 
so that it can be moved safely to another location in the museum.  Does 
anyone have any leads for me to follow on this?  It has a pattern on it 
like this: four round holes at the perimeter of the screw head, segmenting 
the circle into quarters.. . this sounds like something I would hear on 
the Car Guys on NPR!  whirrrrrrrr....
>  thank you.
>
>
>When we try to pick out anything by itself, we find it hitched to 
everything else in the universe. J. Muir
>
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