I need to be educated in collets. I'm interested in buying an ER-40 collet for my lathe. I will have to buy a back plate and mount the collet to it. My mill has R8 collets. I have a small rotary table that has a MT2 center. My question, is there a system I could use that would accomodate more than just my lathe or just my mill? Ideas or suggestions are always appreciated.