A4 30v head bolts

[Autobahn01@aol.com]

On the subject of head bolts lately, has anybody had the head off a 30v V6? I 
ask because I had to strip down a core motor the other day and found I didn't 
quite have the tool for the head bolts. It seemed to be a 1.5" recessed Torx 
style fastener, around a t55 size. My torx weren't long enough to reach, so I 
rented my local SnapOn rep to take a look.(I pay enough per week for 
occasional rental rights!) None of his long torx set were a positive match, 
and he declared it "special". My slightly out of date AST catalog didn't show 
a listing either. A call to my local dealer didn't help, as they've not had 
one off yet. 

Anyhow, a long 9mm hex and some lucky charms took care of it, but I'd never 
torque one back down that way. I'm curious what the correct tool is, in case 
I ever have to delve into my father's A4q.

Cheers,
-Chris Semple
'coupla q's