Re: [CR] French-to-English Pedal Tapping - Drill or No?

(Example: Framebuilders:Tony Beek)

Date: Mon, 14 Feb 2011 21:27:38 -0600
To: "'classicrendezvous'" <classicrendezvous@bikelist.org>
From: "Mark Stonich" <mark@bikesmithdesign.com>
In-Reply-To: <01ac01cbcca6$2c8d5b50$85a811f0$@com>
References: <686980.44463.qm@web31808.mail.mud.yahoo.com> <4ECD6A7017B31A4297D2B431006E5DF903296547A2@EXMBX13.mmeprod.cbeyond>
Subject: Re: [CR] French-to-English Pedal Tapping - Drill or No?


At 06:20 PM 2/14/2011, Scott L. Minneman wrote:
>I wonder what a threadforming tap (as opposed to a threadcutting tap) would
>do in this application? Not that anybody probably makes them in this
>oddball size (especially the left-handed one).

Hozan pedal taps acts like much more of a thread former than a cutting tap. (pretty worthless for cutting new threads) Very long, with a gradual taper running the whole length. A better choice than the Parks for cleaning up damaged threads. Would be the 1st I'd try for French-to-English
>At 06:04 PM 2/14/2011, verktyg wrote:
>I just looked at the TAP-6 Pedal Taps that Park sells. They range
>from around ~$30 to ~$50 a set and don't appear to have much
>starting taper or lead on them.
>
>I think that there were some taps sold under the Eldi or Elde brand
>that weren't as expensive.

I haven't seen the Eldis available for quite a while. UBS has the Vars but wholesale price is within a buck or so of the Parks. They have even less of a taper and the threaded section less than 1/2 as long as the Parks.

BTW the majority of my business is shortening cranks by drilling and tapping new holes. 150-200 sets a year. The Parks are good for at least 100 sets, cutting new threads in 6000 series aluminum. Probably good for a lot more but my shoulders are so bad that I replace them as soon as I notice increased resistance at the tap handles.

Mark Stonich;
     BikeSmith Design & Fabrication
       5349 Elliot Ave S. Minneapolis, Minnesota 55417 USA
         Ph. (612) 824-2372 http://bikesmithdesign.com