I really like the great tightening system with the heavy duty wrench, It really holds my bowls greatMy Chuck worked very good for about 8 months, now I can’t use it at all it jams up and throws out one of the jaws. Amazon is still corresponding with the company they said that I must have gotten saw dust into it, so I opened it and there is no saw dust in. When this gets settled one way or the other,I will review again.