Quote Originally Posted by metalmayhem View Post
if your using er holders then chances are that the holder is most of your problem . Er collets are designed more for precision than heavy cutting . Tg are much better steel cutting holders but solid holders are the way to go
Yeah I have to agree with you. When I first got the mill I bought a few solid end mill holders and a lot of ER-20 collet type tool holders because I thought they would be more versatile. I eventually realized that it was best to standardize on .125", .250" and .375" end mills at least for aluminum. I'm going to order in some solid holders for .250" and .375". I'll see what happens.