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Unidentified Inserts!

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SmokeWalker

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#1
Hello,

I have some inserts from Circle Machine Co I want to use, but I don’t have a suitable holder for them. They are labeled:

“Circle Precision Inserts
Catalog No: TP 405
Grade C3: 7895
Radius: .007

S32-AE 3502-P

They are a little less than .250 inscribed circle, (that is, the circle goes past the edge a hair) they are .98 thick, and have a 20º relief.

Can anyone hook me up with a holder of some kind?

I called the number 818 357 7046, and nobody seems to be home…

SW.
 

mikey

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#2
You might try emailing Widia (took over Circle Machine) to see if they can cross reference that insert to the appropriate tool holder. With a nose radius of 0.007", I'm going to guess it fits a boring bar. TN7 is a cermet grade commonly used for boring inserts by CM, which would support that guess.
 

jdedmon91

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#3
A photo of the inserts would help


Sent from my iPhone using Tapatalk
 

SmokeWalker

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#4
You might try emailing Widia (took over Circle Machine) to see if they can cross reference that insert to the appropriate tool holder. With a nose radius of 0.007", I'm going to guess it fits a boring bar. TN7 is a cermet grade commonly used for boring inserts by CM, which would support that guess.
Yep. They have no ideas. Ever make your own insert holder?
 

mikey

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#5
No, I don't use carbide much except for boring bars, and I use carbide bars for that. That insert is a typical triangle insert and there is a lot of info on the net and Youtube about making holders. Shouldn't be too hard.
 
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