I got in some of the XXGT series inserts this week at work. Have not 
yet tried them.

  Got some little (1/4" IC) 80 deg diamonds for the small boring 
bars,some 3/8" ditto, for the larger boring bars, and some 1/2"IC square 
ones (DoH! Meant to order the diamond shaped!)

  Have not had a chance to use any of them yet, but will report.

  Man o mighty! They sure do have an edge on them. I hope they cut as 
good as they look like they should!

  Cheers
   Trevor Jones

Hi Trevor

I also bought some CCGT inserts recently and following Peter`s
suggestion of Walter I bought 10 of the WK1 grade which are uncoated.
They are extremly sharp and leave a fantastic finish.  I find they are
best for shallow cuts of around a few thou.  I find that for deeper
(or roughing) cuts I use the CCMT and then finish with the GT.
The Gt are great for those 1/2 thou type cuts which I find the CCMT to
tend to rub instead of cut.  
I also got 4 DCGT type inserts which are Kermantel, I think, but of
the same sharp profile.  Again these are uncoated and as yet untested.

Cheers

Paul


On Mon, 14 Jul 2008 04:38:24 GMT, Trevor Jones 
wrote:

>
>  I got in some of the XXGT series inserts this week at work. Have not 
>yet tried them.
>
>  Got some little (1/4" IC) 80 deg diamonds for the small boring 
>bars,some 3/8" ditto, for the larger boring bars, and some 1/2"IC square 
>ones (DoH! Meant to order the diamond shaped!)
>
>  Have not had a chance to use any of them yet, but will report.
>
>  Man o mighty! They sure do have an edge on them. I hope they cut as 
>good as they look like they should!
>
>  Cheers
>   Trevor Jones

Paul M wrote:
> Hi Trevor
> 
> I also bought some CCGT inserts recently and following Peter`s
> suggestion of Walter I bought 10 of the WK1 grade which are uncoated.
> They are extremly sharp and leave a fantastic finish.  I find they are
> best for shallow cuts of around a few thou.  I find that for deeper
> (or roughing) cuts I use the CCMT and then finish with the GT.
> The Gt are great for those 1/2 thou type cuts which I find the CCMT to
> tend to rub instead of cut.  
> I also got 4 DCGT type inserts which are Kermantel, I think, but of
> the same sharp profile.  Again these are uncoated and as yet untested.
> 
> Cheers
> 
> Paul


  Yeah. They ARE sharp! I figure that they will work great for finishing.

  The catalog spec's the speeds at 1000 surface feet per minute, and 
rates them for "medium" machining, rather than finishing. :-)

  I suspect that they shall work just fine, well outside their envelope!

  Cheers
   Trevor Jones