Beats me -- I'm just glad to hear from you! Hi! No, I don't think 14KT is low, 9KT and 10KT, yes. I've bent reamers, and I call that broken. I haven't really "broken" one now that you mention it. I don't know what a battery operated one does because I've never used one, but Boo's right. Get a bead holder/tweezer, so you don't injure yourself.