http://www.mycncuk.com/threads/6770-...r-milling-foam

Here is a thread I started when I was looking for a simlier tool. I also looked into the frog tools but the cost was too high when I was unsure if I even had the ability to mill the foam parts I needed. After completing the job I would say that the vast amount of running time is actually in the final finishing passes and the rough cuts take very little time in comparision. I don't know what sort of finish and step over res you are going to use but I would suggest starting out with some cheap tools to get a feel for what you need to complete the job in an acceptable time.

I bought some cheap indexable insert mills and also some pricey ballnosed mills but half way through the job I relised I could use the endmill to 3d profile and rough the part so the ballmill became redundant. Condsidering the ball mill was twice the price of the endmill it was a costly mistake.

I also think you spindle and machine may not be man enough to take a large frog tool but I could be wrong. I just know even on my thermwood the larger tools cause a hell of a lot of vibration due to off balance tools and jerky machine movement. Burrs dont look like the most balanced tools available with all that carbide glued onto a blank at random angles.