ER Collets

They're very compact compared to the lengths of long taper collets and the grip contact area is generally significant.

Thanks guys. I am planning on picking up a collet chuck for the RF30. I doubt I'll be using many of the tiny cutters I use on the Taig or the MaxNC so I was thinking one of the larger collet sizes might give me more contact (gripping surface). I have an E R25 collet chuck on the noname mill/drill and the ER 25s work ok. I really haven't had any issues with them. I was debating getting and ER 25 chuck for the RF30 so I could just carry them back and forth as needed, but I also debated getting a totally different (larger) size for it so I wouldn't have to constantly be looking for the collet I needed because it was last used on the other machine. LOL.

Bob