Afraid of wasting money considering how many people have had bad experiences with these flutes. I decided to give it a try and take a chance given the LOW price and was pleasantly surprised to receive and inspect the flute set when I received it. / Defects on the surface of the groove. I did not find anything wrong with the product I received and when I tested the hardfacing of the aluminum block project everything was perfect? I was overly cautious in all aspects of the milling process, as I was sure something would go wrong with the flute I took no action. I am very satisfied (and possibly happy) with my purchase.