[modeleng] Re: Replacable Tips

I gather that modern carbide tips are far more able to withstand 
intermittent cuts.

Like everything else, I suspect the quality and grade varies, and perhaps 
these were either, particularly hard and chip easily,  sub-standard, 
el-cheapo's, a less popular grade perhaps for some specific purpose. (As 
have been mentioned.)

Like several others here, I do have one tool-plus-tips, but it rarely sees 
the light of day.
Heck, it was too expensive to actually USE !!
However, when buying it, I was surprised at the variety of grades and types 
available, so suspect that (wrong grade) may
be the problem.

Alan Stepney

http://www.alanstepney.info
Model Engineering & steam engine information pages
----- Original Message ----- 
From: "Allen Messer" <al_messer@xxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Thursday, October 20, 2005 1:29 AM
Subject: [modeleng] Re: Replacable Tips


Gentlemen, I think I read someplace, back in the Dark
Ages, that Carbide tool bits would NOT stand up to
intermittent cuts at all and would chip badly when
used for such operations.

Al Messer


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