I've used stainless steel ones (a long time ago!) which were very effective.Anyone use one and can recommend a smallish one? I'm looking to pay up to £100 but read a few reviews and there's a lot of fake ones out there. I watched a youtube strip down of one and the 'ultrasonics' consisted of a vibrating motor!
Reply to the thread, titled "Ultrasonic cleaner??" which is posted in Electrical Tools and Products on Electricians Forums.