I have used a small ultrasonic cleaner (bought off eBay) a couple of times for cleaning small parts that I have lapped. I used white spirit as the fluid and it worked well for me. As Tony said, I don't know how long it will last, but for less that a tenner I am not complaining. Regards Dave Saudi-Arabia-On-Sea ___________________________________________________________ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/ 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.