Hi all Has anyone else read David Piddington's article on wobblers in this month's EIM? He shows a set of four probes that he bought, and confesses that he doesn't know what the cranked one is for. I must have bought the same set, and I haven't a clue what the cranked one is for either! Any ideas, anybody? Regards Ron 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.