Following on from my recent enquiry about whether to use metric or BA nuts and bolts for model making, I have decided to go with the BA system, for completeness. When I bought my second hand lathe, it came with 4 small collets - metric ones - however. As the only markings are for the individual collet size, can anyone help me identify the maker please, so that I can buy the matching imperial sizes? At first glance the collets look like ordinary MT2 draw collets, but there is no internal threading or even a tang. The collets seem to snap into place and are then held there by a closer that scrws directly onto the end of the lathe spindle. There is also a tubular inserter "thingy" and a mushroom shaped pusher outerer, the latter with a relatively small head and long stem. Thanks, Tony Wells. 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.