It looks like they're also called XZN drives.
-Wes

Wesley Pegden wrote:
> Looking around, it looks like they're called "Triple Square" (I need
> one  of these too).  If you do a google (or froogle) search for this,
> you'll come up with a bunch of stuff.
>
> -Wes
>
> Tom Salicos wrote:
>> They're called Tri-Square or like that I think.  A discount auto parts
>> near
>> me (Portland, Ore) just called it their "CV" tool and there was only
>> one,
>> which worked.  Baxter's auto parts up here carries one.  One type has
>> the
>> 3/8 ratchet end, which is good.  The other type has just a straight
>> shaft
>> you have to put into a socket.  THEY SUCK and fall off way too easily,
>> IMO.
>>
>> Warning - If using a power tool it is really easy to grind the end down.
>> After I discovered that I ground 3/16 off the business end and it was as
>> good as new.
>>
>> Tom Salicos
>> '87 Syncro Westy
>>
>>
>> On 3/7/06, rsf <feller@carboncow.com> wrote:
>>>
>>> So I need to swap out my rear axle and it has the 12 point "allen like"
>>> studs in there. Nobody in the state of Ohio seems to stock 12
>>> sockets or
>>> allen arms so I need some input. Napa (no), sears craftsman (no),
>>> autozone
>>> (no), pep boys (no)
>>>
>>> What size is the bit I need 6mm-8mm looks about right?
>>>
>>> Shawn
>>>
>>
>