centerpin bushing broaches - quality control

[Don Mannino]

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Mike,

I just bought a couple of sets the other day - I'll mic them on Monday and 
see if they are as bad as the ones you got.

If this is common I'll have to have a talk with the people making them.

Don Mannino RPT

At 05:51 AM 1/26/2005, you wrote:

>List,
>
>A few months ago I bought a second set of broaches.  The first set was 
>still in great shape, none missing, reaming sections still sharp and 
>cutting well.  Problem is, I had always had problems fitting size 20 1/2 
>(.051) bushings.  The 051 reamer made them too loose, but the 050 wouldn't 
>get them loose enough.  So I put a mic on the reamers, and found that all 
>were correct size, except the 051 was actually 052.  Since I had been 
>using this set for many years, I figured the warranty expired long ago, so 
>for $20 or so why not just buy a new set?  Well, here's why not:  The 
>sizes of the new set are all over the place.  broaches are oval by 1 to 2 
>thousandths, reaming sections smaller than burnishing sections by 1 to 2 
>thousandths, and again the 051 is closer to 052.  I anticipate that when I 
>call Schaff, they will be willing to exchange, but the new set is likely 
>not going to be any more accurate than what I have.&!
>nbsp; Is there a source for accurate broaches?  Must I learn how to make 
>my own?  Any other thoughts/ideas?
>
>thanks much
>
>Mike
>
>
>Michael Spalding
><mailto:spalding48@earthlink.net>spalding48@earthlink.net
>
>


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