See before you buy; I'd get one at an exhibition. I bought a cheap Chinese 3-jaw off (I think) Warco – but it could have been Chester – as a "rough" chuck to save damaging my Griptru. My biggest gripe on the cheap chuck is the chamfers they put on the jaws – particularly at the end so that you can't grip a short length spigot. Otherwise it's fine for most purposes. Arc Euro do Indian Zither chucks and they're a lot better; Ketan sent me a photo of one before I ordered a 4-jaw recently.