Hi, We all agreed that they were original Myfords collets . expensive stuff. However there is a neat not so expensive and very user-friendly device on the market. Far eastern origin. It looks a bit like a lathe chuck with a key operation like a full chuck. But the working part were collets of the kind with the to and from slits. They close even along their length unlike most who only close and grip the work at the closing end. I saw it on sale at Warco and a few others at the last ME shows. Since it has to be mounted on a back plate, it could be made to fit a Myford and it leaves the whole of the tiny hole in the lathe spindle free to poke things thru. I for me prefer to use shorter ends of stock using a collets. It puts much less strain on the collets. Or failing that use a guide plug for the stock material at the change wheel end. Regards Wilfried Vermeiren http://users.skynet.be/modelbouw.wilfried -----Oorspronkelijk bericht----- Van: modeleng-bounce@xxxxxxxxxxxxx [mailto:modeleng-bounce@xxxxxxxxxxxxx] Namens Tony Wells Verzonden: vrijdag 2 september 2005 19:51 Aan: modeleng@xxxxxxxxxxxxx Onderwerp: [modeleng] Identifying collet chucks MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.