[PROJECT] Clamp Knurling Tool

[EdK]

(01-03-2015, 06:53 PM)TomG Wrote: .... 

How did you manage to dull two end mills on it?

Tom

Tom,

I've not quite figured that out yet. I started out taking .010" DOC and it seemed be working OK so I increased it to .015" DOC until the end mill started getting dull so I changed it out with a very nice made in the USA end mill made by OSG and that eventually became dull. These two end mills had barely been used so I was, and still am, a bit perplexed as to what was going on. That's when I decided to try the face mill. I used your chart for SFPM and RPMs so it should not have been a problem. Needless to say, if you add the cost of two end mills that's one expensive knurl holder blank.  

Ed