My wife and I got our KithenAid Classic Series 4.5 tilt-head mixer as a wedding gift 18 years ago and we have been happy with the mixer over the years. However, we had only used the c-dough hook attachment about 3 times before today. My wife has been experimenting with new recipes during the pandemic and decided to try making bagels... I guess this attachment met it's match. Broke it in half!