Re: Adventures in Finding Small Files—an update

watchmeister <watchmeister@...>

Hi all

  I have worked  as a  watchmaker, and my broaches all work in a rotary fashion. Broaches are also slightly tapered,  so you have to use it from both sides of the hole to get straight sides. It could not be drawn through a hole without twisting.


Ed Holler 

Sent from my T-Mobile 4G LTE Device

-------- Original message --------
From: "Charles Peck lnnrr152@... [STMFC]" <STMFC@...>
Date: 7/28/16 6:27 PM (GMT-05:00)
To: STMFC@...
Subject: Re: [STMFC] Adventures in Finding Small Files—an update


Bill, perhaps watchmakers use the terms differently but as a machinist, reamers and broaches work differently.
Both modify the size or shape of a hole but a reamer cuts with a rotary action. A broach is pushed or pulled
through a hole cutting in a linear fashion. 
At least this is true of all that I have used.  I now expect someone to come up with the exception.
Chuck Peck 

On Thu, Jul 28, 2016 at 4:15 PM, fgexbill@... [STMFC] <STMFC@...> wrote:

As a bonus I have also seen some really small reamers or broaches using the term watchmakers use.

Bill Welch

Join to automatically receive all group messages.