The tool that John links to in his post (below) in VAR tool #22/3, and is indeed a bottom tap for chasing the threads on TA's 23mm crankarms. VAR #23 is a "T" wrench similar to the well-known Campag 8mm "T" wrench, but longer and available in 6 thru 13mm.
RE taps for derailleur hangers, VAR made tool #41D for that task, which they list as 10 x 1mm. Interestingly, I have a tap that is marked 10mm x 26tpi, but I guess the metric equivalent would be 25.4tpi so it's so close it really doesn't matter.
-- Wayne Bingham Velo Classique PO Box 2069 Purcellville, VA 20134 USA 540-338-8376 http://www.veloclassique.com
---------- Forwarded message ---------- From: John Thompson <email@example.com> Date: Sun, Jul 18, 2010 at 10:31 AM Subject: Re: [CR] chasing one's tail To: firstname.lastname@example.org
On 07/17/2010 01:33 AM, john strizek wrote:
> Yes it may be true that a Campagnolo axle can be used as a thread
> chaser. I n fact obtaining an axle may be more costly than the few
> dollars for a proper tap to do the job properly.
Although this may generally be true, finding a true 10mm x 26tpi tap for
the derailleur hanger may be a bit of a stretch. At least I've never
seen one. 10mm x 1.0mm are abundant and inexpensive.
> I am fortunate that I have a VAR tap for old style Stronglight
> threading. I obtained it from Tom Hayes at fair cost. That has been a
> lifesaver more than once. Buggered "pulling" threads have been a
> problem since the protective caps became out of fashion.
Is this the VAR #23? http://www.os2.dhs.org/~john/var23.jpg<http://www.os2.dhs.org/%7Ejohn/var23.jpg>
I have one but haven't yet had the need to use it. Did you find it "bottomed" properly? It looks more like a plug tap than a bottoming tap to me.
-John Thompson (email@example.com)
Appleton WI USA