I'm glad you got the problem sorted out but it does beg the question as to (a) why the original defective jaws were sent out and (b) is there an issue with QC at Record Power. I had an issue with a Record Power grinder which was evident the first time I used it. It was returned for a replacement, which was all well and good, but it left me wondering. Record Power do have good guarantees and seemingly good after sales service, but I'd rather they did a good job BEFORE the send an item out to the customer. Just my tuppence worth based on my experience . . . .